prc 215 heads??
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Ok i have bought a "patrick G" modified torque cam 226/232 .609”/.604” 111LSA +2 xfi lobes.. the cam is spec.'ed to stage 2.5 - 5.3L heads and ported LS6 intake... i am contemplating running PRC 215 heads and a FAST92.. (the ported one from TSP) instead
anyone have any idea what gains i should see over the 5.3/ls6 combo,
am running longtubes, no cats and a true dual 3 inch with x pipe and magnaflows
and should i run speed density, or a large MAF??
the car is a 79 Bu, tranny is built 4l60E, 2600 pro-tourque converter (im also autocrossing it, so i have to run a tight converter), 3.73 (12 bolt) rear
care to take a guess of the at RWHP of the two combos... ballpark figures
anyone have any idea what gains i should see over the 5.3/ls6 combo,
am running longtubes, no cats and a true dual 3 inch with x pipe and magnaflows
and should i run speed density, or a large MAF??
the car is a 79 Bu, tranny is built 4l60E, 2600 pro-tourque converter (im also autocrossing it, so i have to run a tight converter), 3.73 (12 bolt) rear
care to take a guess of the at RWHP of the two combos... ballpark figures
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thanks for pointing that one out... (im obviously dumber than i thought) perhaps i should stick with the stg 2.5´s and get the FAST intake i should still be able to get high 11s or low 12s..
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If your goal is for low 12's/high 11's then the 5.3 heads will get you there. I ran a 12.07 with stock heads, LS1 intake, and a TR230 cam at 3800 lbs race weight to give you an idea of what's possible. There is no doubt the FAST and 215 heads will make more power than the latter, but the extra power is gonna cost you at least 2 grand more.
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If your goal is for low 12's/high 11's then the 5.3 heads will get you there. I ran a 12.07 with stock heads, LS1 intake, and a TR230 cam at 3800 lbs race weight to give you an idea of what's possible. There is no doubt the FAST and 215 heads will make more power than the latter, but the extra power is gonna cost you at least 2 grand more.