Big Block Problem. (Any Ideas?)
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Teching In
Joined: Dec 2006
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From: Ada, OK
Big Block Problem. (Any Ideas?) I have a new 468 i built. Was dynoed last year and made 600 on dyno and ran great. It set in the shop 8 months before getting it in a car. The problem is between 2000 and 4000 in has a popping sound but clears out when you rev it through.. It sounds like its loading up but i dont know much about setting carbs. It's got a new 1050 dominator on it. Thats pretty sad, I can put the motor together but cant tune the carb, lol. I know its not in the ignition because with my old motor it didnt do it. Anyone know where my problem could be?
there is alot of things it could be!check your plug wires,that there on all the way,not burnt, cracked cap,rotor bad,coil not grounded.i dont think your carb has a power valve or i would say it could be that.
That definitely sounds like it would be ignition. Have you checked your cap and rotor? Is it MSD stuff? They're known for corroding and turning to crap after sitting for an extended period of time. I've gone through 3 caps and rotors in 3 years after the car sits over the winter. I'd check all of that before you start playing with the carburetor.
Thread Starter
Teching In
Joined: Dec 2006
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From: Ada, OK
Originally Posted by crazycamaro496
That definitely sounds like it would be ignition. Have you checked your cap and rotor? Is it MSD stuff? They're known for corroding and turning to crap after sitting for an extended period of time. I've gone through 3 caps and rotors in 3 years after the car sits over the winter. I'd check all of that before you start playing with the carburetor.
Thread Starter
Teching In
Joined: Dec 2006
Posts: 26
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From: Ada, OK
Originally Posted by 68maro
the seal in the carb may have dried out. also did you back the rockers off while it sat?
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