66 c10 Build

[Onebad57]

Hey everyone, I am James from GA and I am new to this site. I am starting a 66 C10 build which was my fathers. I have a limited late model dirt track car that I plan to strip and put all the high dollar goodies under the truck. AS a paint and body man I have most of the build planed out but what I don't have is the drive train. As I ask these questions or advice, keep in mind that this truck is all about my father. It will never have anything in the bed and if it gets 10 gallons to the mile, well so be it. I have 3 motors sitting on the stand, 350, 454, and a LT1. Backing these will be either a 4 speed, 2 speed power glide, 400, or a 350 turbo. 4 link rear end, coil overs, rack and pinion up front and quick change rear end. My question is with all this, what would be the best motor/trany to finish the build. My father was the mechanic, I just made them look good. I guess I should have asked more questions about what he wanted for his truck.