frankly since our ST1R cam isn't too far off of oem it shouldn't be much of an issue...however recently ive been working on an 85 mustank GT (with all 89 interior/wiring) that we recently got rid of the AFM PMS IV and went to the megasquirt MS3Pro (its the system that resulted from refinments of the eMSpro that they developed with Spectre.
well injector timing makes huge differences, HUGE especially for idle quality esp with a big overlap cam (making sure to spray on an open intake valve AFTER the exhaust valve has closed, etc)
this is really closely related to whether your going static with the injectors since the pcm has a hard limit on the end of the injection event
so now im going to do some maths to see how far the st1r is from stock but id figure on seing whether any of ya have played with this.
shooting for 750 at the wheels has me looking for every little gain I can find that we can test back to back on the dyno.
/insanity