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I recently put in a Thumpr cam in my 350. spare me the "oh what a ****ty cam" crap. i dont care.
Im trying to figure out the surging problem I'm having. held at about 1500 rpm the engine will rise to 2000, down to 1000 in about 3 second cycles. idleing it does the same thing, except it will go so low it will almost die (and die in some cases) I have an edelbrock 1400 carb.
My timing is set @ 24 initial with no vacume advance at all (disconnected) and heavy springs on the hei mechanical advance, which wont allow timing till 3500 rpm (2 degrees). I dont BELIVE i have any air leaks, and used new gaskets when reinstalling the intake manifold, which I torqued to the proper specs.
I have full exhaust and the engine is a stock gm, heche in mexico.
Suggestions?
Thanks in advance
Im trying to figure out the surging problem I'm having. held at about 1500 rpm the engine will rise to 2000, down to 1000 in about 3 second cycles. idleing it does the same thing, except it will go so low it will almost die (and die in some cases) I have an edelbrock 1400 carb.
My timing is set @ 24 initial with no vacume advance at all (disconnected) and heavy springs on the hei mechanical advance, which wont allow timing till 3500 rpm (2 degrees). I dont BELIVE i have any air leaks, and used new gaskets when reinstalling the intake manifold, which I torqued to the proper specs.
I have full exhaust and the engine is a stock gm, heche in mexico.
Suggestions?
Thanks in advance