George, Thanks for bringing your clarity to the discussion.
The 4V valves weren't my idea. I bought a set of heads that had already been built, but never installed, and that's what the previous owner wanted. I agree with you on sticking with the stock sizes. It was hard to pass up on these as I paid less then the cost of the parts he had bought, not to mention the machine work.
My car was once a daily driver, but now definitely falls into the weekend warrior range. As far as performance, I'm looking for a broad power range, and am willing to give up a bit at the top end if it improves the mid-range.
Thanks....JP
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