Quote:
Originally Posted by Mitch//pa
Dave,
my car is mainly showed and hardly driven. i go though maybe 3 tank fillups a season. with the proper jets the GAV is much more responsive both at idle and cruising. i think this will solve the OP problem along with no other vacuum leaks, and a tight throttle shaft and properly set up carb.
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Mitch, I agree that the jets need to be correctly sized and the carb needs to be mechanically correct. We are suggesting the same thing...but I am suggesting cleaning your existing jets before moving to replace. Renner's jets are well worth the money if you do not flow test them yourself.
Regarding ethanol "enhanced" gasoline. My experience in working on other owner's cars is that if a car is stored for a period of time with ethanol gas, the jets will typically start getting plugged. I have seen a well tuned carb start to run rough, lack power and drop in miles per gallon after 10 weeks of storage with this type of gas.
When on the road by myself or with friends, if we can not find collector car gas...we just fill with what's available but I remind them to not store the car with ethanol in the tank. JMO: Never leave ethanol gas in your tank over winter!
My original post was abbreviated as a customer walked into my shop as I was entering it...I could have done a better job explaining. Sorry about that!
Good Day!