There are a few downfalls with the gt28
Resale
“limits”
@ 350 hp with that turbo you will be what about 18-19psi? thats Hard on the motor when you compare it to a bigger turbo.
@20psi on my 60-1 it was 480whp (at the end of the road for that turbo)
To add to that a large power band creates large traction problems!
just given you a heads up!
Would be a fun Road race car