What should timing on a 383 be?
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Joined: Mar 2001
Posts: 373
From: Anywhere but here
What should timing on a 383 be?
Just curious as to what my initial timing should be. One of the guys at AutoZone said a 383 should be at about 17, and I'm at about 12 right now. He said if I changed it up it would run cooler, but that didn't make sense to me. Any thoughts?
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1986 Z28
383 ci Stroker, Dart Sportsmen 2 heads, roller rocker arms, Crower Hot Street Beast cam, edelbrock 750cfm carb and performer rpm intake, Corvette Servos, shift kit and 2600 rpm stall convertor, 3.73 gears and Eaton limited slip posi rearend.
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1986 Z28
383 ci Stroker, Dart Sportsmen 2 heads, roller rocker arms, Crower Hot Street Beast cam, edelbrock 750cfm carb and performer rpm intake, Corvette Servos, shift kit and 2600 rpm stall convertor, 3.73 gears and Eaton limited slip posi rearend.
Registered User
Joined: Dec 2000
Posts: 174
From: oxford,mi.,u.s.a.
Depends on what type of distributor you have.
If you're using a stock HEI dist., they come with 20 degrees of advance already built into them so about 12-14 degrees of initial timing would be you're starting point. Small blocks like anywhere from 32-38 degrees of total advance timing. If you're running a aftermarket distributor, you'll have to find out what the advance is built into it unless you have an adjustable vacuum advance cansister then the adjustments and settings are easy. This info is based on the fact that you installed the cam straight up.
If you're using a stock HEI dist., they come with 20 degrees of advance already built into them so about 12-14 degrees of initial timing would be you're starting point. Small blocks like anywhere from 32-38 degrees of total advance timing. If you're running a aftermarket distributor, you'll have to find out what the advance is built into it unless you have an adjustable vacuum advance cansister then the adjustments and settings are easy. This info is based on the fact that you installed the cam straight up.
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