Thise closed chamber heads will help w/ compression. I'd also look for a used dual plane intake. A CH4B would be ideal. Also try and snag a used pair of headers or you can buy Summit brand for $129 or so. While you're on the phone w/ then get a t-chain set, and the 488 cam lifter set. That should wake the 77 up and w/ 3.55's you should have a pretty strong runner.