Carb jetting

Harry Keast · #1 02-12-2004, 10:12 PM

I just put a Holly double pumper 800 on my 68 GTO that has a 3/4 cam, roller rockers, electronic ignition, stick shift, 400 engine, and live at 4000 feet altitude. I need a starting place for jetting on the carb. Any help will be helpful.

aux187 · #2 08-30-2004, 11:38 PM

Quote:

Originally Posted by Harry Keast

I just put a Holly double pumper 800 on my 68 GTO that has a 3/4 cam, roller rockers, electronic ignition, stick shift, 400 engine, and live at 4000 feet altitude. I need a starting place for jetting on the carb. Any help will be helpful.

I have a 625 road demon double pumper on my 400 and my prims are 68 and my sec 76 and Im also at 4000ft and my spark plugs look perfect.

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