gm hei dist.

This HEI distributor for S/B and B/B Chevy non-computer controlled engines features a…
4-pin ignition module rated to 7500 rpm
Premium cap with brass terminals
Shaft Diameter: 1.249″
High output coil (50,000 volt spark through 7,500 rpm)
4340 chromoly steel bottom gear, for use with cast and steel billet cams
Mechanical advance
Adjustable vacuum advance to improve economy while cruising
High performance rotor
Coil cover
Fully CNC machined, polished housing
True spark alignment for instant response at high RPM
Performance style advance curve built in