Engine advice needed


427 c5r $25,000
or
383 $13000
larger radiator $2,500
new kevlar clutch
lightweight flywheel $2200
cryo-polishing
3.42 differential $2500
stainless steel brake
lines and pads $1600
custom tt setup w/
garrett turbos $13000
Im trying to get about 800 to the rear wheels, which idea would be the best. I had planned to do 427 now and tt setup later but the compression ratio at which the engine is built may be an issue once the tt setup is complete. Is it that hard to change the compression ratio in the engine to accept the tt setup or not. The place claims 550 at the rear wheels with the 427 but only at high compression. and about 480 with the 383. I want to know which idea is best.

