ok guys the motors almost done and im thinking about oils...just dont know what weight to run in this thing it is basically a drag car with very little street use... eagle rotating assembly mahle pistons, its carb'd i converted the block to a roller...what else do you need to know? most of my drag racing friends use 20-50 i feel thats thick maybe just me...i have heard others like ryclef331 that run 15-40 rotella diesel oil...give me some ideas and your reasoning...thanks guys!!!