Pertronix points conversion.

[Cornpatch MO]

Today, I received my Pertronixs III and the .3 ohm, 45,000 volt pertronix coil. This thing is so easy to install, I thought there were parts missing. Use the stock points breaker cam--no special reluctor and no air gap to set. It is multi spark, automatic dwell change at higher RPM, and has a very simple to adjust RPM limiter. I have a advance limiter plate with several different wieght springs , on the way.
My question is: what plug gap should I be using? Pertronix says I can run a larger gap with their electronic conversion, but makes no recommendation. I have a 440 engine --9.5:1 compression --about .475 lift, long duration cam, --Eddy RPM performer intake,-- 750 Holley double pump mech. secondaries.-- stock 516 heads with larger exhaust valves ,stronger springs,-- stock 68-69 Magnum exhaust manifolds with 2.5" pipes and Super 44 mufflers.-- RPM limit at 5,500 RPM. Thanks for replies............................MO

 

[Darter6]

Been using their products for years. Have it in my Valiant and Hemi Car right now. I do .040

 

[threewood]

I have the same setup in my 440, 10.4:1 compression and .040" seems to work well

 

[69a100]

I have mine somewhere between .45-.50", runs great!

 

[1967coronet]

I have the pertronix #2 in my 383 and run a .40 gap, seems to be fine.