Pre-soliciting Introduction

You're going to hear it from someone sooner or later... Get a copy of the factory service manual. Those Chilton manuals have alot of wrong information in them. Fine for finding the oil capacity I guess, but probably off when it comes to proper clearances.

Most of the power is in the head, like any other engine. You have a "peanut plug" head which is different from my "drool tube" head. I don't know if the milling/porting approach would be different. Keep reading and then ask component specific questions. I seem to have better luck with those answers than if I ask "I have 5 grand, how fast can I get it to go?"