A ''95 EXT 580 EFI Mountain Cat with a regular 3/4" inch track (136" long) w/ 144 studs and regular clutch settings w/ a D&D EFI Hot Rod Chip VS. a ''98 ZR 600 carb with studs. Who would win? I haven''t rode the EXt yet w/ the chip, what benefits will is see??

definitely the 600 in the long run but you will definitely have the holeshot with the single exhause port EXT 580 and the longer track but even with the hot rod chip all you gain is about 4-6 horsepower and the EXT 580's with the single exhaust port are only rated at about 90 horse anyway