Vette C-4,
Don't read this as a testimonial
or an advertisement... but for the sake of letting you know... there are experienced folks who can help you data log
and then provide programming changes if you are uncomfortable with doing it yourself.
LT1 PCM Tuning - Welcome!
I have never worked with this guy, but he's pretty good from what I understand. Lots of folks with other LT1 cars (Fbodies, Bbodies, swaps, etc) have had good experiences with Solomon.
FWIW- He's got a couple swaps on his page that he's tuned... such as an LT1 powered Porsche 944.
LT1 PCM Tuning - Featured Rides Tuned Here
Regardless- good luck with your search for more power!