Chevrolet Repair: 1980 Chevy Truck, chevy truck, timing chain

Question
Hello,

My dad had a 1980 Chevy 4x4 show truck with a 350 motor.  After he passed away, I wanted to restore it.  The engine had a bad cam, so I replaced it.  I put the engine back together, it now won't start.  When I had it apart, I went ahead and changed the timing chain/gears.  I feel it has something to do with the timing.  I have rebuilt engines before and have never ran into a problem like this.  It doesn't seem to be getting fire at the right time.  It will sometimes sputter like it is ready to start, but then not start.  I am getting gas.  When I installed the timing chain, I made very sure that the timing marks were lined up and the number one piston was at the top.  I even have tried to turn the distributor around to make sure that I wasn't 180 off.  When I am at top dead center, the rotor is lined up with no.1.  The only thing I haven't tried is to replace the rotor/cap/wires/spark plugs.  It ran before I started, but had a definate problem with the lobe wore off the cam.  Any ideas?  I would like to show it again as a tribute to my dad.  Thanks.

Answer
Pull #1 spark plug, rotate engine to feel compression at #1, then turn engine to line up balancer at 0, then check dist. for proper position. Timing marks on chain/gears, when dots line up together, firing #6, when both dots are straight up, firing #1. You may also be 1 tooth out at dist. or possibly did not line timing marks up at chain. Good Luck!