engine wise you wont lose but like 2 HP going from one to the other, wiring wise you'll save some time with OBD-0, and the most affordable kit i have seen is the HCP engine kit, 4 mounts and a adjustable shift linkage for 450.
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El Pendejo Loco
2002 Suzuki Hayabusa
1507 "dry" block
Brocks megaphone
Spencercycle 10" swingarm
MPS auto shifter
Hays convertible clutch
Yea, that about sums it up...