Hello all I've put a LS1 motor into my 01 ecswb p/u and it is throwing a po300 random misfire code. I've changed plugs, cleaned TB & MAF and programmed 5.3 computer with all the fuel mapping from a 01 Camaro. Anyhow I'm wanting to change injectors because motor set in my Garage for at least three years before I bought it from my coisin and installed. So should I stay with the same size or go up in size. My only plans in the future will be a bigger cam, stall, and some exhaust work.
BB