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Thu Mar 18, 2010 10:59 am

This is all i have done new park plugs, timing is good, i don't hear any exhaust leaks, i have a pertronix but i do change the hole distributor thinking that was that but not, crazy ahhh well, also new carburetor kit and this engine just keep doing the same when i release the gas pedal it just sounds like a action movie with flames and everything. Do anyone nows what else to check, thanks :?

Fri Mar 19, 2010 11:07 am

Did this start after you rebuilt the carb?

Could be an exhaust leak somewhere. Run the engine and hold a couple of rags over the tail pipes and try to plug off the exhaust. If the engine stalls, you have a tight exhaust. If it keeps running, you can hear the exhaust leaking PHSSST!.

Fri Mar 19, 2010 11:26 am

white/red_68 wrote: This is all i have done new park plugs, timing is good, i don't hear any exhaust leaks, i have a pertronix but i do change the hole distributor thinking that was that but not, crazy ahhh well, also new carburetor kit and this engine just keep doing the same when i release the gas pedal it just sounds like a action movie with flames and everything. Do anyone nows what else to check, thanks :?

Let me know what it is when you figure it out. I would love for mine to be able to do that! ROFLMAO

Sun Mar 21, 2010 4:14 am

nop I rebuilt the carb because i had the problem already....

next will be to change all exhaust gaskets, I put new cables and that was not the problem. sooooooo

i will post after the new gaskets if this is not th the problem well God nows!!!!

i

Mon Mar 22, 2010 6:57 am

It only takes a small leak in the exhaust to cause to problem as you describe. Air enters the exaust through the leak on decelaration and adds oxygen to the unburned fuel and causes ignition.

Those doughnut gaskets can be a problem trying to get them to seal. Some fit better than others. Also the ends of the heat exchanger rust to a smaller diameter or rot where they exit the heat exchanger and leak. There is a machined part to repair the exchanger instead of replacing the whole thing. You cut off the end and hammer in the new piece.

They're still available. Part number VWC-113-255-107-X.
http://www2.cip1.com/ProductDetails.asp?ProductCode=VWC%2D113%2D255%2D107%2DX

Check around for other sources.

Mon Mar 22, 2010 1:52 pm

Stock exhaust?

May be bad exhaust valves allowing the combusting fuel/air mixture in the cylinders to extend the burn to unburned fuel in the exhaust system.