I just put my buick back together after being down for a year due to blown headgaskets from running lean, I have verified that I am getting 1lb of fuel for every pound of boost so thats good and I am at 4.6 volts on tps wot, I have all the goodies for proper fuel psi walbro,hotwire,42.5 injs so now it would seem that my inj would be the culprit, are there any other things to consider, o2 volts are 650's in 3rd gear.