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BilLster · 11-06-2007, 08:58 PM

Well 2x .68 ar ratio and a Crane Cam 228/228 @ .050" .512/.512" lift. about 600+ hp to 900

im running 700 rwhp on a 331 with a ported cobra and used heads.(my back up motor dont ask)

boost depends on tubing size and turbo compressor volume.

airflow is different than boost. boost is a restriction reading.

i run 2 blow off valve's and two waste gates to allow boost to build quicker and limit boost for the street.

seriously though a .48 a/r would do it and sneak up on it. fuel and intercooler play a part also. you can get crazy horse power with that combo if you turn up the boost .

When i did my first build i was given the Corky Bell book and its great.

11-06-2007, 08:58 PM	#4
BilLster Registered Member Join Date: Oct 2000 Location: Ontario canada Posts: 446	Re: boss 347 Well 2x .68 ar ratio and a Crane Cam 228/228 @ .050" .512/.512" lift. about 600+ hp to 900 im running 700 rwhp on a 331 with a ported cobra and used heads.(my back up motor dont ask) boost depends on tubing size and turbo compressor volume. airflow is different than boost. boost is a restriction reading. i run 2 blow off valve's and two waste gates to allow boost to build quicker and limit boost for the street. seriously though a .48 a/r would do it and sneak up on it. fuel and intercooler play a part also. you can get crazy horse power with that combo if you turn up the boost . When i did my first build i was given the Corky Bell book and its great. __________________ 89 with 331 t3'/t4 hybrids. upr Suspention worked out finnaly . 9.89 144 mph .