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44'rs..... or 40's. best all around use.
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raunchy57'
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PostPosted: Mon Nov 25, 2019 3:54 pm    Post subject: 44'rs..... or 40's. best all around use. Reply with quote

Made minor changes to my motor, ( 1968cc), 74mm Forged Crank, 92mm pistons, Mag case sleeved lifter bores, VZ-25 cam, 041 heads 39x35 dual springs, UN-ported, 9:1 comp, Magnum Straight-cuts,.. Not for track use, for weekend cruz, with lots of pounding..!! Smile . Thanks for everyone's opinions Very Happy
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PostPosted: Mon Nov 25, 2019 4:33 pm    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

I say Weber or Dell 40s...unless you plan on driving at high rpms all the time. Even then, 40s for that size engine. Here comes a bunch of other opinions...
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PostPosted: Mon Nov 25, 2019 4:59 pm    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

The Dell 40's sound really nice. You could get away with dual weber 40's, but in the end some people run 48 ida's on smaller motors so larger carbs will let it run.

If you plan on bigger motors down the line, do the 44's.
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PostPosted: Mon Nov 25, 2019 5:02 pm    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

36 Dellorto or 40 IDF would work best. Upgrade to larger 30-32mm venturies.

40 Dels or 44 IDF's are too big.
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raunchy57'
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PostPosted: Mon Nov 25, 2019 10:18 pm    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

vwracerdave wrote:
36 Dellorto or 40 IDF would work best. Upgrade to larger 30-32mm venturies.

40 Dels or 44 IDF's are too big.
How about if I slapped in a set of 32mm venturies in a set of 44'rs..?
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vwracerdave
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PostPosted: Mon Nov 25, 2019 11:58 pm    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

raunchy57' wrote:
vwracerdave wrote:
36 Dellorto or 40 IDF would work best. Upgrade to larger 30-32mm venturies.

40 Dels or 44 IDF's are too big.
How about if I slapped in a set of 32mm venturies in a set of 44'rs..?


You can get them to work fairly close, but you ask for "BEST".
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PostPosted: Tue Nov 26, 2019 7:35 am    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

40's and port the heads properly for the usage....why waste the $$ to build it or stroke it if the heads wont support it....thats how oh somany engines get blown up and run hot. from trying to make more power than they can flow air. air= hp=tq
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PostPosted: Tue Nov 26, 2019 9:55 am    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

raunchy57' wrote:
Made minor changes to my motor, ( 1968cc), 74mm Forged Crank, 92mm pistons, Mag case sleeved lifter bores, VZ-25 cam, 041 heads 39x35 dual springs, UN-ported, 9:1 comp, Magnum Straight-cuts,.. Not for track use, for weekend cruz, with lots of pounding..!! Smile . Thanks for everyone's opinions Very Happy


With this combo; your best option is the dual 40 IDF's.
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Dale M.
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PostPosted: Tue Nov 26, 2019 10:04 am    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

I always considered anything under 2000cc to be candidates for 40's (Weber's or HPMX), over 2000cc 44's...

Dale
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raunchy57'
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PostPosted: Tue Nov 26, 2019 11:23 am    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

vwracerdave wrote:
raunchy57' wrote:
vwracerdave wrote:
36 Dellorto or 40 IDF would work best. Upgrade to larger 30-32mm venturies.

40 Dels or 44 IDF's are too big.
How about if I slapped in a set of 32mm venturies in a set of 44'rs..?


You can get them to work fairly close, but you ask for "BEST".


Got it..! Very Happy
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raunchy57'
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PostPosted: Tue Nov 26, 2019 11:25 am    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

mark tucker wrote:
40's and port the heads properly for the usage....why waste the $$ to build it or stroke it if the heads wont support it....thats how oh somany engines get blown up and run hot. from trying to make more power than they can flow air. air= hp=tq


True ... ! Smile Thanks.!!
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raunchy57'
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PostPosted: Tue Nov 26, 2019 11:26 am    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

[email protected] wrote:
raunchy57' wrote:
Made minor changes to my motor, ( 1968cc), 74mm Forged Crank, 92mm pistons, Mag case sleeved lifter bores, VZ-25 cam, 041 heads 39x35 dual springs, UN-ported, 9:1 comp, Magnum Straight-cuts,.. Not for track use, for weekend cruz, with lots of pounding..!! Smile . Thanks for everyone's opinions Very Happy


With this combo; your best option is the dual 40 IDF's.


Thanks..!!! Very Happy
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raunchy57'
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PostPosted: Tue Nov 26, 2019 11:27 am    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

Dale M. wrote:
I always considered anything under 2000cc to be candidates for 40's (Weber's or HPMX), over 2000cc 44's...

Dale


Thanks..!! Very Happy
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raunchy57'
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PostPosted: Tue Nov 26, 2019 11:30 am    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

Casting Timmy wrote:
The Dell 40's sound really nice. You could get away with dual weber 40's, but in the end some people run 48 ida's on smaller motors so larger carbs will let it run.

If you plan on bigger motors down the line, do the 44's.


Thanks..!! Very Happy
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raunchy57'
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PostPosted: Tue Nov 26, 2019 11:30 am    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

Bama Dave wrote:
I say Weber or Dell 40s...unless you plan on driving at high rpms all the time. Even then, 40s for that size engine. Here comes a bunch of other opinions...


Thanks..! Very Happy
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raunchy57'
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PostPosted: Tue Nov 26, 2019 4:11 pm    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

vwracerdave wrote:
raunchy57' wrote:
vwracerdave wrote:
36 Dellorto or 40 IDF would work best. Upgrade to larger 30-32mm venturies.

40 Dels or 44 IDF's are too big.
How about if I slapped in a set of 32mm venturies in a set of 44'rs..?


You can get them to work fairly close, but you ask for "BEST".

I'm gonna go with the 40 idf's,... 30 or 32mm venturies?.. for BEST.? ( the stock jets should be alright.?
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mark tucker
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PostPosted: Tue Nov 26, 2019 5:36 pm    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

jet it for what it needs. rarely do they come with the correct jetting.always check it along with the plug heat range reading.
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raunchy57'
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PostPosted: Wed Nov 27, 2019 12:25 pm    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

Bama Dave wrote:
I say Weber or Dell 40s...unless you plan on driving at high rpms all the time. Even then, 40s for that size engine. Here comes a bunch of other opinions...

good call. tnx. Very Happy
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PostPosted: Wed Nov 27, 2019 12:45 pm    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

raunchy57' wrote:
vwracerdave wrote:
raunchy57' wrote:
vwracerdave wrote:
36 Dellorto or 40 IDF would work best. Upgrade to larger 30-32mm venturies.

40 Dels or 44 IDF's are too big.
How about if I slapped in a set of 32mm venturies in a set of 44'rs..?


You can get them to work fairly close, but you ask for "BEST".

I'm gonna go with the 40 idf's,... 30 or 32mm venturies?.. for BEST.? ( the stock jets should be alright.?


With your specs, the way it is set up out of the box(assuming you are buying REAL GENUINE webers) is going to be VERY close. I wouldn't change anything until you try and run it.
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raunchy57'
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PostPosted: Wed Nov 27, 2019 3:03 pm    Post subject: Re: 44'rs..... or 40's. best all around use. Reply with quote

[email protected] wrote:
raunchy57' wrote:
vwracerdave wrote:
raunchy57' wrote:
vwracerdave wrote:
36 Dellorto or 40 IDF would work best. Upgrade to larger 30-32mm venturies.

40 Dels or 44 IDF's are too big.
How about if I slapped in a set of 32mm venturies in a set of 44'rs..?


You can get them to work fairly close, but you ask for "BEST".

I'm gonna go with the 40 idf's,... 30 or 32mm venturies?.. for BEST.? ( the stock jets should be alright.?


With your specs, the way it is set up out of the box(assuming you are buying REAL GENUINE webers) is going to be VERY close. I wouldn't change anything until you try and run it.

Alright..! good to hear that., Tnx lots. ( real Weber's ) Very Happy
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