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.
Put some spark in that ignition with one of many distributors from high performance ignition builders like: Accel, Mallory, MSD Ignition, Pertronix, Proform and more. Choose from HEI distributors, billet, crank trigger distributors and others for street to racing applications.