good to know - I'm learning from all you guys as I try to map out whether I'm going to replace the turbo 383 in my 70 Fury with a 5.7 eagle/nag1 turbo and whether I want to build a 5.7 based turbo engine for my 69 coronet vs the 400 based engine I'd been planning. Sounds like for either of those the SRT cam would be ok, plenty of gears and rear gear in the Fury and the race car of course wants the bigger cam.