Ran fine. Intake manifold started leaking antifreeze. Pulled into shop. Removed intake manifold. 230K miles so I went ahead and pulled the WP and front cover to look at timing chain. Not too bad but I replaced it anyway. New front cover and new WP also. Replaced upper and lower manufold gaskets with OEM from GM. Put engine a TDC, installed distributor back in with rotor pointing at the "6" stamped in top of distributor. Installed new cap and rotor. buttoned up. NO SPARK.
Rechecked distirbutor location. checked to be sure I plugged both the crank and cam sensors back in. Pulled crank sensor to be sure I didn't get any silicone on it when I installed the front cover. Checked and I have power to distributor and coil with key on. WTF! Any Ideas. What have I inadvertently disturbed? Surely its something obvious that I'm just missing. HELP?