We have recently installed a rebuilt (350)engine in my 69 Malibu. Edelbrock performer heads, edelbrock 750 carb, edelbrock cam, etc).
The engine now has about 200 miles on it.
When I give it the gas, the engine bogs down
and then it picks up and runs fine. Sometimes it even backfires through the carb. Once you get past this point the engine runs fine and has plenty of power.
The fellow that was helping us tune the engine is out of commission with quadruple bypass surgery.
Is there something a non-carb techie can play with or do I need to find a carb shop or performance shop.

Sure wish the search function was running. This may have been answered in the past.

Thanks,

Mike

It looks to me like you have too much carb. Some of the carb gurus will be chiming in soon.

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Leo Paugh
Maryland Chevelle Club #017
A.C.E.S.#3731
progress has little to do with speed, but lots to do with direction.
Maryland Chevelle Club (http://www.clark.net/pub/chevelle/mcc.htm)

Try Edlebrocks tech support on their web page. I had a similar problem with a 750 Holley and Holley's tech support gave me the correct information on the first try. These guys deal with these problems on a daily basis and should know the answers.

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ACES member #04788
Maryland Chevelle Club member #075
Have you ever noticed that those instruments designed to detect intelligent life in the universe are all pointed AWAY from Earth???

It sounds like the secondary air valve spring is too loose. There is an adjustment for it (this is the Q-jet look alike, right?). However this is best done by someone who has done it before. If you can find someone with experience to show you how to do it, it's really not a complicated adjustment to make. But you can make it worse if you don't take the precaution of holding the secondary valve spring tension with a screwdriver when you loosen the lock bolt. As of now, you have a base line, and all you need to do is tighten it up a bit. If it unwinds on you, then you pretty much have to start from scratch and find the right setting by trial and error. That's why I'd suggest having someone show you how to do it the first time.



[This message has been edited by Randy Mosier (edited 01-31-2002).]