SM Head Modifications on a budget

85glht said

So, after following this thread to its entirety, one take that I get it that someone really needs a flow bench to make sure that each port flows the same. Otherwise, you will have a cylinder that will be just "along for the ride".... Like a fat kid on a rowing team.

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That's funny.

So far, I think we have seen a few things that definitely pay off, all of them right around the valve area. A good valve job, backcutting the valve and a light bowl blend all add up to 15 cfm so far. Modifying the PRP and head bolt bulge are not great short term moves but unlock potential for future modifications. I'm going to continue to play around with the valve job and simple chamber and bowl mods before moving on to the SSR. I really think there's 5-8 more cfm waiting to be found.