Discussion Starter · #1 ·
Hello, first of all mine is a 91 f150 with a 5.0 and hopefully I don't get booed out of here for that but I really need help. I recently rebuilt my engine with new everything a bigger .485 intake and exhaust cam, ported upper and lower intakes and heads, and shorty headers. I kept the obd-1 as I don't have the money to convert to II or carb. The cam isn't big enough to affect the vacuum for the map sensor so i figured I'd be fine my problem is I have no low end power and it pops through the exhaust like a lean pop and I think that's the problem. Do I need bigger injectors to compensate for all the extra air or a reprogram? Or both how do I tell? Any information at all would be very helpful and appreciated. Thank you.