Adam, I don't know if this helps you any, but here goes. I put a rebuilt 440 in my Fury last year to replace the 318 poly. Guy sold the motor to build a twin turbo 440. I bought it for 1500 bucks complete. I don't know actual compression, but i was told it is 9 to 1, has 452 heads, manifolds, and the old grind 484(cant remember the lsa). Car has a 2100 to 2400 rebuilt converter from Transgo, and 2.94 open rear end. I have the initial timing at 16, total at 36. Even with the big C body behind it, it pulls pretty durn good, especially when you wind it up. If I had 3.91 gears and a bigger stall like you, I believe it would run like a raped ape. Good luck on the build, and the thread has some good info on it for others looking to get some go on a budget.