The engine was just rebuilt I was told!!!

One good suggestion. I did this on a 383 build. Float the rods on the pistons and balance out...big blocks love this along with balanced crank. I am a small blocker by heart as you can see from my picture but I lived 3 blocks over from Gene Snow growing up.....advantage Henry lol. Good luck...you will have a great build when you are done. Say....can you do implants or dentures?.