Bluebird, I was considering sending my 400 block to butler, and have him clearance the block for the crank and build the short block out for me using one of his balanced assembles. Along with that we were going to add 4 bolt main caps and line bore it. The next set would be porting the heads and putting it together. I just remember how a hot cam in a 400 seemed pretty mild in a 468. I figured a 500 would allow a smooth idle, good vacuum, and a broad torque range with a cam duration of 250 at .05 spectrum. But I have plenty to learn and that's why I ask a lot of questions. I also have a 70 455 I could stroke and build the 400 stock. I do have alcohol free gas available but I would have to buy local. (Actually in Mineola, tx)
