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I'm planning of tearing down my 68 T120 top end and changing to a 750 big bore this winter. As long as I'm rooting around in there, what do I need to do to let me run unleaded gas? I figure on the seals having enough lead ground into the seals that it'll work without additive, but I mine as well change it. Also, does someone make bigger valves for more power? Of course a port job would be needed too. But the main thing is, what is needed to safely and fully convert to unleaded? Thanks, Kyle
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