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Old Mar 13, 2007 | 09:02 PM
  #1  
gta31's Avatar
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From: pittsburgh
Car: 87 gta
Engine: l98
afr head

how much power gain will really from afr heads over stock l98 heads they claim 80 at the wheels
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Old Mar 13, 2007 | 09:39 PM
  #2  
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Joined: Mar 2004
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From: Manitoba
Car: '91 GTA
Engine: 421sbc
Transmission: Powerglide
Axle/Gears: Ford 9" with 3.89
Find out what your L98 heads flow at max, then find out what the afr's flow at max.

My AFR195's flowed 259cfm at 0.55 lift.

The difference in flow numbers, multipy by 2 and that is a guess, along with another camshaft choice.
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