Jim---Bang for the Buck, I'd go with CR increase. The lightened flywheel
does help a little on acceleration. One of the biggest benefits of a
lightened 'wheel comes when the engine is subject to speeds that
regularly take it to 6200 rpm, where crankshaft harmonics is more likely
to try to shake off the heavier 'wheel. If this type of engine speed is
not in your plans, you'll get more out of the head work.
Dick
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