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Tech Question
jerre hutcheson, anniston, AL, 72 plymouth satellite plus 440
I recently installed this 440 engine it ran fine. I installed an Edelbrock intake along with the dual quad setup from Summit. It still ran great . Next I installed a bigger cam. A Mopar purple cam. Not a big one (didn't have to go to adjustable lifters.) I lost my vacum and the car won't idle - it surges and loads up and suggestions.
Jer, yes, a few. First, it may well need quite a bit more idle spark advance now, and/or there may be vacuum advance at idle, a no-no. Second, be sure the cam was installed (phased / "degreed" correctly). Third, there may now simply be inadequate vacuum signal for the carbs to work properly, they may need a rework.
It never fails to amaze me how guys can throw together an amalgamation of parts, selected by the "throw a dart" method, and then be surprised that there's driveability and/or tuning problems.
Rick
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