So, aparently my last thread got deleted for no apparent reason..or maybe it was an "accident".....who knows..anyways, I am just needing to know..if you have larger injectors, a MS system, and a walbro pump....why do you need a 1:1 FMU.....i see many people are running them..but i'm wanting to know why they are running them.....arent the larger injectors and MS taing care of all the fuel needs already....also, if you're messing with the fuel pressure at all levels of boost, then it's hard to get a good tuned fuel map...I just need some info on this ASAP please...