To buy Gt40's and then port them is a waste.....you'd be spending more $$$ than getting the TFS or AFR's out of the box anyway, just to get close to the same flow #'s. Just my .02
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'90 5.0 LX - heads, intake, cam, fuel delivery, gears, full exhaust, pulleys, ignition, drag springs, front brake upgrade, a/c delete, K&N cone filter charger.......and much more!
1/4 mile: 12.29 @115
60': 1.78