Poor Kid

We have an 03 Vette, put a large cam, and did the heads. We had it tuned, didn't make the numbers we were looking for but it ran good. After about a week the ses light came on and it ran like crap. Found the intake elbow clamp had come loose. Fixed it, cleared the code and it was good for about a day. Ever since then it sparatically runs good. It will run mad fast and then like a switch being turned on, it won't run. It spits and boggs and is just a not the same, then you stop at another light and its all better. What gives, anyone else having this sort of problem?

wait4me

iTrader: (10)

might be a ground issue?

My caddy was doing the same thing. turned out to be a bad frame ground right by the fuse panel on the passenger side. Really really weird too as i never touched that ground ever, and it was really loose.