I'm going with 440cc BOSCH drop in injectors off ebay for $190. shipped. Turns out I need the injectors with the 178/70 combo & Jerry sees no tuning issue with them as I was hesitant also especially when I thought I had to go with 550's. Yeah, the exhaust will lean the fuel system but will not tax the 440cc inj's.

Da55, I was looking at Squirell Cruscher's mods and not yours. You may be OK with your mods and the addition of the headers. While it's true a freeflow exhaust will lean the motor you should be OK with the rest of your mods. The part about changing the injectors is the fact that the intake manifolds have to be removed/installed and this unknown territory for me even though I farm out the work. Do you have a wideband O2 sensor, I missed that? If not then you need to get one. That will tell you if you need injectors but first there is always an adjustable regulator. I'd get the regulator, then a wideband. By then maybe the headers will be ready and you will know if injectors are needed. I say no you will not but the mods I mentioned are shoukd haves anyways.