Ok, i know theres been a bunch of posts on this lately, and ive tried reading em and doing em. Anyway, I have an 87 K20 with an 89 TBI engine in it. WHen it used to be warm (above 60) the truck started fine. Now thats its dropped to 50 in the afternoons and 30 in the morning, in the morning it wont start. It kicks over strong, but it wont catch. Sometimes itll catch but not fire. It'll do that till it sounds like the batt is gettin to its end, or i hit it w/ a drop of starter fluid. Then in the afternoons after its sat all day, it takes awhile to start, but i dont hafta use up the battery of the fluid. Ive cleaned the IAC, no difference, i checked my heat riser tube and mechanism, no difference. Then last night with the truck off, i messed with the EGR valve. I pushed up on it like people say to do to test it. Well it didnt move at first, but then it moved easier. SO i started it up and it idled im guessin 4-500 RPM's higher (i have no tach). SO i took it around the block, and it seemed to run better, used to be when i would put my foot on the floor at say 40 it would kick down to 1st gear and not go anywhere. SO i did that and it kicked down to 2nd, and actually moved along at a good clip. So today i go out there to restart it, and its back to its old self. What now? As far as performace, ive got a low restriction exhaust and air cleaner, headers, and a chip. Nothing else that could change it. Any ideas? Sorry for it being so long. EDIT: Well, today i go outside to start it, its wont start at all, now it'll run on starter fluid, but only till its gone. The fuel pumps run, one in each tank, ive tried both tanks. Ive replaced the fuel filter. Ive changed the rotor, and the IAC. The injectors are gettin pulses according to the NOID(sp?) light. But they are not spraying fuel. SOOO what now? Im praying its not computer probs, but its looking like either that, or a new throttle body...... if it comes to throttle body, the holley one that sprays more is cheaper, and its the whole thing, or parts of the throttle body from GM come to like 75 more and arent even everything. IF i do need a new body, what about the holley? any experiece?