I think I'm going down the modeling clay road. All of the math involved with the degree wheel etc. makes my head hurt no matter how many times I read the posts!

Doc Frohmader uses the degree wheel technique in his Webrodder series, but again I'm having a hard time trying to make sense of it all.

What is the minimum piston to valve clearance to aim for? I read that around .090"-.100" is a safe bet? Any smaller and problems could arise— does that sound correct?