Spark Plug Gap Q

[Tom 72RS/SS]

Putting in a new set of NGK plugs in the wife's 68 SS Camaro today. Fouled the old ones badly as it has been running rich all year but it sat in the garage over the winter for at least 6-7 months. I know some of the problem is the carb (rebuilding the Holley today).
Question is: what gap is everyone running these days? The motor is a sbc with Brodix aluminum heads big cam and 750 dp Holley. Plugs out of the box are gapped at .30 but with the Pertronix ignition seems too tight. Thinking about bumping it up to around .040 for better spark. What do you guys think?

[sam 74]

I run .038 with my msd ignition. My factory spec is. .035.

[mitch_04]

I emailed Pertronix when I installed their Ignitor 2 in a '70 Datsun 2000 I'm restoring and they said you can gap .05 more. Take it for what it's worth!

[DreamRyder1963]

I'm running .050 on my NGK V-Powers. I have a 350 sbc with MSD 6a box and Ready-to-Run MSD HEI distributor. It also has a 625 Street Demon. There was a noticeable improvement in power and these plugs have lasted over twice as long (and still going daily) as all the other sets I have tried.

[Tom 72RS/SS]

I have the same plugs @ 0.40 and runs good. I run NGK in all my cars.