unintercooled boost limit?
As far as running low timing or a methanol kit I just have the car tuned on 100 octane, though I could prolly run a little more timing with 93 and meth I just feel safer running 100 all the time and not using meth as a sort of band aid for fuel.
Also it depends on the tranny that you are running as well. For me running a th400 kills alot of HP. I have no doubt that if I still had the 6 speed in the car and a intercooler I would see close to 750 rwhp.
If you have a 6 speed I would def say you have a good shot at making mid 600's


