340 Static Compression Numbers and Test Procedure

Pick a couple of plugs and post some pictures. IMO, that plug is worthless. Any black shelled plug is near impossible to read. If you want to use Autolite's get a plug with a cad plated shell (or whatever coating Autolite uses...I'm STILL waiting on catalog from those bone heads).

That 65 crosses to a 12 Champion and if you CR is up at 11:1ish or even higher with the incorrect cam (still need to find out what's going on there) and is probably at least 1 range too hot.

If it's pinging on tip in I'd rather pull a couple of degrees of total out of it and get the curve in shape.

Also, I'm going to say that the springs available now leave plenty to be desired. I'm saying they don't always do what the instructions say they do. So you need to spend some time with a timing light and the tach and nail down exactly what the curve is, if you haven't already done that.