Why not just slow down the timing curve to come all-in by 3000-3500 and not 2500? See what that does. I thought the modern chambers and high compression don't need a quick curve?
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I could explain all this to the girl at the parts store, but she'd probably call the asylum.
White '67 LeMans 407/TH350/Ford 3.89... RIP
Red '67 LeMans. 407/TH400/Ford 3.25
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