Timing 86 305
Sounds like you might be 1 or 2 teeth off. Pull the number 1 spark plug and get the piston at TDC. Pop the cap to see which plug wire the rotor is pointing at. It ain't the correct way but you can rewire the cap starting with #1 plug wire at the tower the rotor is pointing. If it is pointing to #6 spark plug wire pull the distributor and rotate it 180*.