My '68 GTS makes around 600HP and I've got stock wheel wells.......27X9 Hoosier Quick Time Pro's......springs moved in......4.10's and a 4-speed.........at 3,550LBS race weight has run 10.66 @ 127 so far but I can't leave real hard because it runs through the clutch......I've never had any kind of traction issue, even in the middle of summer on greasy tracks.....

The secret to making it work is; LOOSE FRONT END WITH GOOD SHOCKS!!!!!!.....Heim joint strut rods and control arms......Poly lower bushings.......Cal-Trac front shocks.......6 cyl. T-bars......