My engine was run at that but on a big turbo. I think it was 710 on pump fuel. I don’t have that turbo and if my small turbo is used it may not hold 500 bhp through the Rev range as it is a stroker, it might need the next turbo up to hold 500 but doesn’t need to be stressed. 580/600 should be a walk in the park.
i also have 16 inch wheels, 3.9 diffs and a close ratio box so it would top out around 160 mph at 8000 rpm, it was mental at 469 bhp.
Last edited by Caddyshack; Dec 11, 2019 at 07:30 PM.