New member, here is my car, with tech specs

[HAULN-SS]

I'm probably going to be shooting for at least 500. I am debating three options at the moment: Period correct 400 big block (the car is a 71 402 Monte Carlo - minus the 402 at the moment), period correct 454, or just springing for a crate 572. They will probably all cost about the same in the long run, by the time I get them the way I want them, but the 572 will have a warranty, and a gauranteed output. I have a smallblock 350 in my 86 Monte Carlo, and it's a moderate engine, but you cant beat a big block's torque. That'll come in handy for a 4,000lb car. Plus it's already got the factory larger sway bar and such for a big block since it had one originally.