Statistical significance does not provide information about the effect size or the clinical relevance. Because of that, researchers often misinterpret statistically significance as clinical one. On one hand, a large sample size study may have a statistically significant result but a small effect size.
An HEI distributor is an upgrade from a points-type distributor. ... Ford and Plymouth, installed four-cylinder engines in their cars.he increased efficiency of HEI distributors stemmed from the incorporation of the ignition wire into the distributor cap, reducing degradation of the spark and loss of energy potential.
There are new HEI distributors sold on eBay that go with a brass terminal-equipped cap, rotor and module, all the way up to the top-shelf, polished billet, ball bearing-equipped full zoot, double throw-down versions costing several hundreds of dollars.f looking for an HEI, choose one that has the 4-pin module seen at upper left, above. The other modules all require an ECM to function correctly. Use a heat sink paste (available from Radio Shack and computer shops) on the bottom of the module and be sure the surface of the distributor body where it mounts is clean.