problem solved.
The car has been running very good for 2 weeks so far 100miles a day. even made it out to a track day at button willow a day after I got it running.
Stupid me...I checked the mechanical timing but didnt check the ignition timing.
The half of woodruff key was broken into little pieces on the crank angle pulley side but lucky half of crank gear pulley side was intact, which saved my motor.
The cause of woodruff key failure I believe was using a impact gun to tighten the main bolt...i know i know I will never do that again
thanks everyone for you help!
Old post, but I think I have a similar issue. I am not a mechanic. 1st shop replaced catalytic converter ($200) close to where I was standed; did not help. My 'regular mechanic' now wants to replace alternator ($475). Already had to tow it in twice too ($65 per tow...). Thoughts?