Which carb for turbo build? IDF or IDA

[rustybug1990]

I am about to embark on an engine building journey and I am trying to figure some things out. I know I want to run a blow through turbo with dual carbs, the rest is up in the air right now. This will be a weekend warrior kind of car build, nothing too pretty just fast and fun, maybe even take it to the drag strip occasionally. So starting off, should I go IDF or IDA carbs? I don't know nearly enough about them to know which way to go.

[NJ John]

Blow through IDF’s are a common thing. Blow through IDA’s are not. So, there’s more info out there for the IDF’s.
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1973 standard, yellow, lowered, 3” narrowed front, 1600 blo-thru turbo w/single dell 15.4@86, so far
11.41 et buggy. Long gone
Let’s go O’s! Let’s go O’s!
https://www.youtube.com/@AirSpooledGarage

[madmike]

Dells is the Carbs ya need , they have throttle shaft seals from the factory
IDFs work for low boost or the carbs leakish
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'Black Ice'Drag Buggy 'Turbo'
Rail Buggy 1915 turbo
76 Drag/Street bug 2180cc 'Turbo' 11:85 @113 mph"If I go any faster I'll burn up the Hamster" ,gets 28 mpg. also 10/09/22 11.90 @115 mph
"If I'm ever on Life Support,UNPLUG Me, Then Plug me back In see if that Works"

[Dauz]

You will have to have the shafts sealed up for anything over 7 lbs. in my experience.

I have seen most machine the body for seals and some machine the shaft for O-rings…personally I have never done it.