Re: Ls help one more time, please!!!
You should be able to check the fuel pressure with the valve on the rail, see if it falls off, or if your maintaining a good pressure. It does sound a little like the cam wasn't factored into the tune, but the cam isn't HUGE so IMO it would still run a bit better than your describing.
It sounds like your saying that when you rev it, and then let off, it tries to die and then come back up? Check for vacuum leaks. Does it rev up normally and sound/feel ok? If it bogs or runs wild, check the tps and MAF.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING
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