Author Topic: Timing/Carb Adjusting  (Read 1557 times)

Offline timl1978

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Timing/Carb Adjusting
« on: July 02, 2009, 05:52:39 PM »
Here's my setup.  Brand new Holley Street Avenger 670 CFM.  I've only adjusted the idle screws.  Brand new MSD Street Fire Distributor.  Intial timing is 8 degrees.  Adjustable vacuum canister is set at two turns out.

The issue/issues don't know if they're related.  Slight miss/flat spot at throttle tip in.  At speed when I mash the gas from low rpm I get a pop which I think is backfire.

A - What should the total advance be, hose on, at say 4,000 rpm?  Does it even matter because when under load vac may be different.
B - Should I jet slightly fatter to solve the slight miss at tip in?