I have a chance to purchase a LMM or an LB7 motor with approximately 120K miles on each. The LB7 needs to injectors, but I would plan to replace the injectors anyways. As for performance stock with EFI Live Tuning and aftermarket bolt ons with EFI Live Tuning, which engine does everyone think would be a better option. This motor will be placed in a car. I would like to place twin’s, and maybe in S480 for the big turbo. That’s what I had in my truck many years ago, and that thing screamed. Thoughts?