View single post by Judson Manning
 Posted: 08-31-2006 04:30 pm
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Judson Manning



Joined: 03-14-2005
Location: Atlanta, Georgia USA
Posts: 406
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 NGK BPR6ES is what I'm using in all of my engines.  I gap them .025" to 0.035" based on the ignition system.

The gap will be determined by the c/r of the engine and the output of the coil.  The higher the c/r, the smaller the gap; the higher the coil voltage the larger the gap.

A simple Pertonix distributor kit doesn't give you any more coil output.  Neither does using the Lucas 'sport' coil or any other aftermarket coil.  Ok, maybe you do get a little more, but it's nothing like the ridiculous voltages produced by an MSD, et.al. type of ignition system.

The only time I'd go above 0.035" is if I was using stock c/r pistons and an MSD type of ignition system.