Do you race yours on the track? When I went to a local track there was 2 classes Street & Strip. Street class was regular tires & Drag radials on streetable cars. Strip was slicks on race cars. For a mildly moded car a set of Nitto's, BFG drag radials, or Mickey Thompson drag radials should be fine. I am going to try the BFG's 275/40/17 or 255/50/16. I have not figured out which rims I am going to use.
97 GT 5spd
Tremec TKO, Pro 5.0 shifter, Ram flywheel & Powergrip clutch, Steeda adj. clutch cable, quadrant, firewall adj.,FRPP Aluminum driveshaft, BBK ceramic long tubes, BBK short x-pipe w/ cats, Magnaflow Magnapacks exhaust, SCT xcal tuner, 13" Cobra brake kit, 17" 98 Cobra rims
Parts bought but not installed yet
PI heads, PI intake, CAI, BBK adj. fuel pressure reg., BBK fuel pressure guage, Kenny Brown subframes, FRPP 3.73 gears