Hi cobish,
Guess what I am using
There's a "built" C6 behind my 521 and I love it! I also have an EDGE converter with about a 2200 stall speed and a 2.88 Powerlok Jag rear.
You may want different specs depending on your intended usage, cam characteristics, tires and axle ratio.
I've got a Crane hydraulic roller cam and Holley EFI which probably knock 100hp out of the original 600, but I hope it'll be a lot more durable and tractable on the street.
Only got 4000 miles so far
so we'll see.
I will say this: from a standing start it gets to 100mph faster than you can say it, and if you "lean into" the throttle a little too hard or too early, the whole car drifts to the right
This is with 315-35/17 Michelin Pilots on the back, not those "traction-free-smoke-em-up" BFGs that a lotta folks use.
And what a gorgeous sound!
What cam/axle do you have? Lotsa street use or mostly track or ???
Regards,
Tom
PS: Just noticed you are in PA. The trans shop that built my C6 is in Southern PA somewhere around York(not sure exactly?), Jim Sanders at 717-417-3345 if you want an estimate.