Hello this is my first post and I was hoping you could help me out. well last week I bought a 74 firebird formula for $650 and it runs. It has the pontiac 350 in it and the automatic tranny its running fine but it seems like the engine has been modified it rumbles then sounds like its gonna die then starts to rumble again, I just want to make sure theres nothing wrong with it I was thinkin it might be a racing cam or some thing. Im only 17 so Im not the best at being able tell whats going on, yet. I also was wondering if anyone knows where to find the ram-air air intake so I can convert the car to ram-air. Thanks for the help.
My guess is that IF it surges, and lacks off to the point it almost dies ...you have a vacuum leak. Normal race type cams don't go thru much if that type of transition ...almost dying then racing up to RPM. They just have an erratic idle. Good Luck! ...Mark
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