fouling out spark plugs ???

i have a 460 running 12 to 1 compression and its full roller with iron heads ported (max effort) and msd ignition.

I am fouling out plugs like crazy!! so far i've been using AR33's with around a .040 gap....

Am i setting up these plugs wrong and what other plugs would maybe work better????

Thanks

What carb? Have you changed air bleeds, and worked on it?Timing? The plugs may be a touch cold, but I'm thinking you got some other issues.

old 1050 dominator. air bleeds dont come out. just rebuilt carb tonite. and jet down 4 sized all the way around.

Keep,after it, you'll get it.