I've got AFR 205's sitting in the garage and an F13 on the way. Will I be able to get away with using the stock injectors, will I need to upgrade or should I just wait till I get it tuned?

 

I think you will get away with using stock injectors, but not with a lot to spare. I think stock injectors are good to about 450 rwhp.

 

That depends on your fuel pressure. Unfortunately with the stock one in the rear we cannot maintain 58 constant psi at WOT. So a system like Racetronix PnP 255 + harness is pimp. Add a FPR at the rail and then your 28.8's will flow close to 30lbs and handle that power NA.