[Seabiscuit5.0]

I switched from an a/a intercooler to an air/water intercooler on my sbf 306 cubic inches f1r and was wondering what plugs you guys are running and what are they gapped at? I was running an autolite 3910 at .026. From what i heard i could probablygo up a heat range

 

[prochargedboss]

i run autolite 3922 gapped at .022 with 28 lbs boost