Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#1
04-21-2006, 06:12 PM
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L-72 tune up
Well my COPO runs!!but.........its very sluggish on the bottom side of the RPM range. I have 12 degrees intial advance but it doesnt seem to want to run at anything below 1200 RPM and as soon as any load is on it it want to stall!! Anyone have any tune up specifics I can use to help this monster run any better?? Jeyy Macniesh did the distributor and it is set up for a L-78 motor not a L-72 if that makes any difference. Cam is a solid roller .575 intake and .597 exhaust 112 degree lobe center..not real radical..I can get the cam card later if needed. Thanks
ALbert
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1969 9566AA COPO Chevelle M-22 1969 Malibu 489 ZL-1 T-56/4.56 1969 Beaumont 540 th400 3.70 1969 Chevelle 300 Deluxe 427 ZL-1 M 22W 1970 Olds 442 W 30 2 door post 1969 Ply. GTX 426 hemi auto. Blue. 1940 Dodge pick up Durango 4X4 1968 Camaro ragtop LSA ZL1 
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