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.
1 Put the distributor cap on the distributor. 2  Make a mark on the distributor housing that lines up with spark plug terminal post #1 of the distributor cap. 3  You can use a Sharpie.4  On a coil-in-cap regular HEI, #1 will be the 2nd. Turn the distributor body slightly until the points just open and tighten the hold down clamp. 2  Place the distributor cap in position and check to see that the rotor lines up with the terminal #1 spark plug wire. 3  Install cap, check all high tension wire connections and connect spark plug wires if they were removed.