Header install

I have a set of Hedmann headers to install on my 78 4WD with a recently rebuilt 350. I know that I need to adjust the timing and richen the fuel/air mixture. I don't know how much adjustment is needed. Can someone point me in the right direction? The carb is a Holley, not sure of the specifics.

Thanks Mark

Reply to
Mark and Ellen Smith
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A good start is no adjustment.

Reply to
Scott M

If it was running fine before the change, you do not need to adjust anything. You should get a little better gas mileage, as your engine is now breathing better.

Reply to
Eightupman

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