502 Chevy with Street & Performance Fuel Injection (ram jet style)

 

The best way to do it is to not rotate the engine at all with the old distributor out and put the new one in with the rotor pointing the same way as the old one was. HEI was used by GM in the 70's and 80's. It uses a magnetic pickup instead of points and has the coil built into the distributor cap.

 

If dizzy has not been removed there should only be one way you can put on the rotor.

 

High Energy Ignition.