Make good and sure that the wires are on right, make sure the dui distributor didnt get put in 180 degrees out. Go back to the basics, set it up on top dead center for cylender #1 - the intake and exhaust valve rocker arms should both be a tad loose as your cam should be off of the lobes with the valves closed. your rotor should be pointing directly at the #1 wire on the distributor cap and the pointer should be on the mark on your crank pulley
