when I try to time my chevy 350 the mark on the harmonic balancer is flashing about 2 inches before the timing tab. Is the timing wrong, the tab installed on the engine in the wrong place, or just what the heck is going on. when I try to twist the distributor to get the mark closer to the timing tab, it will get about 1 inch away from the begining of the tab and the motor chokes down, wont run there. It has to be about 2 inches away from the beginning of the tab to run. My tab is mounted a little off center of the engine to the drivers side. The mark on the harmonic balancer is flashing on the top about the center of the engine. How can this be?