ya my votes for 4.10's for a GT. now i dunno bout the 99 an up years but in my 96 cobra i had to reburn a chip after i put my 4.30 in cuz it ran like dump otherwise. Anybody have a comment on this?
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347- ported X heads, Xcam , RPM air-gap intake, 650 holley DP, 10:5 comp., equal lenght shorties, pullies, MSD ignition, pro 5.0 shifter. stock fuel system !!
best ET: 11.95 @113 1.64 60 foots
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