ok i know thiers a huge aticle but i couldn't find what i needed to know in thier.

how much should i take out of each port and were did you take most of it out of. this is my fires time porting and i do have a practice head.

i looked at the pictures in sitting bulls thread and i just can't tell enough were to be taken out of.

 

You aren't trying to remove material from the ports per se, but cleaning up and smoothing them, and possibly matching the intake ports to the gaskets.

This http://www.sa-motorsports.com/diyport.shtm is very detailed, worth printing out and studying. Those instructions come in poster form with their Deluxe Porting Kit.

 

ok thanks five7kid .. time to get to work. what kinda gasket should i use any recomendations

 

The goal of head porting isn't to "hog them out" or make the ports "larger", necessarily; it's to make them flow better. You can easily have a situation where a large, poorly shaped port will flow less than a smaller one with a better shape.

The places where the real payoff is, are the bowl right behind the valve; and the transition from the rectangular port, to the cylindrical bowl; and re-shaping the valve guide (again, NOT removing material from it) so that air flows smoothly around it without turbulence; and in raising the exhaust port roof as far as possible without hitting water, toward the header gasket.

It also helps greatly to polish the chamber, and to lay back the chamber walls, gently and carefully, around the valves (especially the intake) using a head gasket as a template, to unshroud them.

Undercut valve stems make a HUGE difference in low-lift flow; as will back-cutting the valves.