Hey guys, I have a 400 sbc with a high rise manifold, headers, 1406 carb, runs nice, but i am wondering what a ballpark figure is for having it machined to a 406 including labor and pistons? I did have a 305 in this truck (1985 SWB) and dropped this one in with no problems. I'm getting pricing all over the place. I can pull and put the motor in myself. Thanks!