i got a 383 its been 6.5 1/8 and 10.5 1/4 mile its got ported and polish lt1 heads got roller rockers hooker long tubes ported lt1 intake accel 32 lbs injectors 58 bbk throttle body 5.7 eagle h beams lanati crank srp forged .030 dished pistons canton oil pan csi eletric water pump custom alum valve covers its got a compu car nitrous kit spraying 225 feel free to ask any ? its still in the car i just want to go faster want to do some 5.8 5.5 1/8