I have just replaced the motor with a new crate engine from GM -a 350 small block - but car is not running smoothly. The carb has just been rebuilt but is still rough when idling. Should I replace the old carburetor with a new one?
I have just replaced the motor with a new crate engine from GM -a 350 small block - but car is not running smoothly. The carb has just been rebuilt but is still rough when idling. Should I replace the old carburetor with a new one?
I'm taking it to a garage today to have the rear springs replaced. I'll ask them to check for a vacuum leak. When I had it running yesterday, someone said they could hear a hissing when I had the hood up and so they thought there was a vacuum leak somewhere too.
are the intake and carb matched? around 67 , the 4 bbl intake had 2 small ports in the front of the intake that were heat risers to warm the base of the carb. IF the carb is not the correct style for that intake, you will get a terrible vacuum leak. simply plug the heat riser ports with a small frost plugs, or tap the 1/4 NPT .
something to check??
sorry ,, read the whole post over,, intake will not be the problem, but is the carb bse gasket the right one ??
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later...rog
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I'm a collector...not a builder!!Located in sunny central Saskatchewan at the lakehead!