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Old 12-18-2001, 08:24 AM   #16
MustangDanny
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Join Date: Nov 2001
Location: Dover, DE
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Fordmuscle.com did a shoot-out between all the popular heads out there and one thing that I was VERY suprised at was the GT-40X heads. They tested the to flow 235 CFM (at .7 lift on the intake side) and 167 CFM (at .6 lift on the exhaust). That compared to the Edelbrock Performers (215 CFM intake at .6 lift, 179 CFM exhaust at .7 lift) was interesting. And then compared to TFS heads, (242 CFM intake at .6 lift, 198 CFM exhaust at .7 lift) they are not much worse. They didn't test AFR heads. Does anyone now what the numbers on the AFR heads (out of the box) are?
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-1991 LX 5.0 Sedan, 5 spd (new 'Z' tranny), 3.73, aluminum DS, Hedman headers, 190 LPH, MAC CAI, Flowmaster catback. (170K miles on motor)
Best ET: 14.434 @ 96.04 MPH - 2.205 60' (Radials)
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