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Jeff Chambers · 04-19-2005, 07:06 AM

38 seems a bit much to me. I've never seen an engine like yours really care for any more than about 34-degrees of timing. That carb is also starting to get to be pretty small for a engine of that size spinning at 5K+. Put a good Holley 750 4150 on it.

04-19-2005, 07:06 AM	#3
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	Re: high rpm hesitation...need help 38 seems a bit much to me. I've never seen an engine like yours really care for any more than about 34-degrees of timing. That carb is also starting to get to be pretty small for a engine of that size spinning at 5K+. Put a good Holley 750 4150 on it. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"