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#81
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Yeah, my bad! Fat fingered into the wrong thread!
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Triple Black 1971 GTO |
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#82
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It happens
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#83
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Quote:
I have vaccum advance plugged into manifold vaccum now as well Sent from my SM-G996U using Tapatalk |
#84
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Stan
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Stan Weiss/World Wide Enterprises Offering Performance Software Since 1987 http://www.magneticlynx.com/carfor/carfor.htm David Vizard & Stan Weiss' IOP / Flow / Induction Optimization - Cam Selection Software http://www.magneticlynx.com/DV Download FREE 14 Trial IOP / Flow Software http://www.magneticlynx.com/DV/Flow_..._Day_Trial.php Pontiac Pump Gas List http://www.magneticlynx.com/carfor/pont_gas.htm Using PMD Block and Heads List http://www.magneticlynx.com/carfor/pont_pmd.htm |
#85
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Haven't bought the tool to do it
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#86
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Ended up finding the original owner of my car on Facebook. He said car has a ram air III cam, car was bored over 60 over balanced and blue printed he said the heads were worked but dosnt remember the specifics and compression was 9.5 or 10 to 1
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#90
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If this is correct the aluminum heads won’t gain much with out a cam change too. RA3 744 cam only has .406” lift. The bigger ports on Aluminum heads just start to get going at .4” lift. To get a 400 with 5C to 9.5-10 compression would either take some domed pistons or start out with small chamber 5c’s with a lot of milling to get the cc’s down. Both are possible, but I would be surprise if the compression is that high. By the way the performance is described it is more likely the compression is low 8s and the 744 cam. Fwiw Last edited by Jay S; 11-15-2021 at 11:36 PM. |
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