[240racer]

looks good guys. I would prefer the s-afc plan and then run it on the dyno. I think either way you are going to want to run it with a wideband a/f meter (not a gauge) and most dyno shops have one. I would not trust a a.f gauge to do a baseline tune, I would use it to give you a warning that something is not working correctly. It's kinda like a EGT gauge, you don't tune with it, you just use it to tell you that everything is working properly. BTW, you can tune with either one. I dont think you need a FMU with the s-afc, but you can do what you want. I don't have one. However, if you run a 255high pressure pump your fuel pressure will rise since the stock regulator can't handle the flow. You don't need the 255 pump, the 190l/hr will be more then enough fuel to make enough power to blow the stock pistons and rods :-). I would just get the 190l/hr pump and use the stock regulator. Try to keep at least 4" or so between the mafs and the compressor so you don't get any turbulance in the mafs.