Hesitation on light acceleration
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Pro
Joined: Mar 2004
Posts: 686
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From: Southeast
Hesitation on light acceleration
When going from a dead stop, I'm having a slight stumble problem. It's only during light to normal acceleration though. When I kick it, it's okay. I know I have two threads going right now, but these are two problems I'd like to take care of before the weekend. When the new heads were put on, the motor guy readjusted my Edelbrock 600 CFM carb. It idles great and actually runs wonderfully except for the acceleration thing. He said he set my timing at 28* because he said he's old school and doesn't want to worry about detonation and valves pinging. Do I need to advance it? Also, it idles at 600 RPM in gear and 800 RPM in park yet when I cut it off last night, it backfired through the carb or "dieseled" as some call it. Could this be associated with this problem? Another thing, the stock torque converter is about shot. It clunks hard in gear, and I'm sure it doesn't like my cam either. 
Could this be part of the problem as well? I'm open to ideas.
Could this be part of the problem as well? I'm open to ideas.
Drifting
Joined: Sep 2004
Posts: 1,959
Likes: 1
From: North Bend Ohio
Originally Posted by Fubba
The carburetor's an Edelbrock. I don't think they have an accelerator pump on them? I could be wrong though.
Also unless the engine is put together with some kind of VERY strange combination it should be able to tolerate more than 28 degrees of lead. Your mechanic is an idiot because valves don't ping. Your initial advance should be somewhere around 16 give or take a few. Total advance should be about 36 degrees all in by 3000 RPM.
BigBlockk
Later.....
