you can get a stall out of a lincoln mark VIII, its between 2500 and 2800. alot of people run PI stallion units too. as far as nitrous goes, there are several people running deep 13's with modest shocks on mildly modified 4.6's.
ive never heard of the nozzle in the airbox. you might want to try that right before the throttle body.
ive never heard of the nozzle in the airbox. you might want to try that right before the throttle body.