hey, my 2000 m6 ss has 8500 miles on her & i just had it tuned on a mustang dyno after my header install. i have a lid,k-n filter,smooth bellows,160 stat,ppc long tubes & orp,gmmg & 4.10 gears. i had 341 h-p to the wheels & 334 torque. do these #s sound ok for what i have done??? what kind of 1/4 mile times should i get???thanx john