ok what can make the lt1 run rich...i know egr and o2 can do it....my ses never stays on long enough to store a code, i've had it checked and nothing is stored...wot it runs great but in slow traffic it acelerates funny, almost like detonation...can a bad fuel pressure regulator cause it to run rich?....i've replaced my tps and pulled my 160 and put the 180 back in..and seems a lil better but i still get what i think is a high idle..almost exactlly 1k
Huh? You say you are running rich but you ciomputer never stores codes: how do you know? Are you fouling plugs? (then why isn't the computer storing codes?). Did you remove the o2 sensors and install dummies?: it should still figure it out and store a code. If you fule injuectors are old, dirty, or just broken, that could cause it, and I've had three go bad in five years with two cars, so it does happen.
Anyway, what makes you suspect the fuel pressure? You can dfoes not sound like it has enough mods to have run into problems there. Could be some defect but . . .
the problems in traffic sound like: a) running lean, b) less low end torque (barely possible due to your headers and no cats, but not likely to be the cause).
Frankly it sounds to me like you having something common to many cars tuned by owners with Hypertech or other tuners or computer backpack type kits and adjusters, WOT works okay but intermediate trhottle positions don't. I suggest you take the car to a really good shop with LLS1edit and let them look it over.