Sick of hunting down this issue on my own - Please Help! :)

[Evil Trailblazer SS]

Both injector spray patterns look very even. No dripping from the injector at all, but some fuel does get splashed onto the sides of the venturis at idle.

I am going to pull all the plugs this morning just to be sure I didn't crack any of the plugs when I did the manifolds but I don't think that is the issue. Since the problem clears itself up after 2,500rpm (for the most part) I think it may be electronic.

When i broght the truck home, the wiring for the coolant temp sender on the front of the block had been spliced into the factory wiring with some really ghetto 3M jelly bean locks so I corrected that immediately since the truck would not come off its cold start fast idle. After that, the idle issue was corrected so clearly it is now getting proper signal to the ECM.
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