Ok here is the deal. I blew another lower intake manifold gasket ( twice now with 149,000 miles) and thought I would do it myself this time. I am not a pro mechanic by any means but have worked on engines a while now. Got everything cleaned and installed but one mistake I did make was not marking distributor when I pulled it.

Figured it wouldn't be that hard to set the timing. The truck will not run at all. I rotated engine till tdc compression stroke, dropped distributor in with it pointing at cylinder 1 post on the cap. Set my valves and hoped it would run. Nope. Not even running crappy.
I have heard I need a Gm Tech 2 scanner to set the timing on this. Is this correct? If I do, should this engine at least run crappy without using a scanner? I get nothing at all. I have spark, compression, and fuel but apparantly not at the same time.
Pretty sure I messed up there on the timing,

but I do know 2 guys that work from their home after they get off from the chevy dealer but I won't be able to get ahold of them till Friday. I am just wondering if I might have missed a connector somewhere, and that is why it won't at least run crappy. Or if it will not run at all without some reprogramming?
Any thoughts or idea's would be appreciated.