I HAVE A SMALL 350 CHEVY THAT HAS LOW POWER UNDER LOAD UNLESS TIMING IS ADVANCED. THAT

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Lawman

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CAUSES STARTER TO DRAG.? THE SECONDARY OPENS CORRECTLY WHEN TIMING IS ADVANCED BUT I NEED TO CURE THE PROBLEM AND I AM AFRAID I CREATING A NEW ONE.
VACUUM ADVANCE WORKS GREAT WITH EDELBROCK CARB., I CHECKED IT ON THE LEFT SIDE WITH CONT. VACUUM. THE ENGINE ITSELF IS FRESH REBUILD AND REPONDS TO ANY CHANGES AT IDLE WITH EITHER SIDE ADJ. SCREWS. I AM THINKING THAT THE LEFT VACUUM PORT THAT IS ONLY SUPPOSED TO WORK UNDER HEAVY THROTTLE IS NOT WORKING CORRECTLY.
 
i agree with mike. but im leanin toward vaccum advance cuz mine was doin the same thing and it was the advance...
 
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