your tach is miscalibrated from the factory. LT1's really only spin 4500rpm. its still a TPI motor, they just wanted to make you feel like you got more for your money.
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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...