MM&FF just did a how-to on how to port your own heads. Pretty good article.
Why is everyone using the SVT heads vs. 3.0 heads? Only benefit I can see is cam timing and maybe easier installation, but you have to worry about CR. Which could actually be used to your benefit. Adv. of 3.0 heads are lower CR for forced induction, larger valves for better airflow. SVT cams will fit in 3.0 heads, correct? I'm picking up a 3.0 block this winter to build and I'm trying to decide which heads to go with. I want the flow of the 3.0, but if I Extrude hone my 2.5 when their off, and throw on 3.0 valve with a good valve job, in conjunction w/ Pro-flow and 24# injectors (maybe larger if CR requires it) I should get a comparable setup, right? If I get enough pwr NA I won't go forced.
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