well...........what should i do..............i want 500 to the ground..........351 ci, or 393ci, and what size turbo for a single turbo setup...........this needs to be a reliable every day not to agressive build........i was thinking 393 with around a 70mm turbo............or would a 60mm be ok.........obviously torque will be favored in the combo but more torque is better..........let me know what i should do