Don't worry about the cam gears, you can buy shiny adjustable gears pretty cheap but you
really need to know what you're doing with timing adjustments on these heads. The valve timing on 4G63's are critical and one goof will destroy valves and potentially the engine. That being said, the extra cam will get your engine breathing like it has desperately needed it. I'd love to do this conversion but with some big ass 40mm bike carbs and a bespoke set of headers. Mitsubishi did do an old school twin cam engine on PHH carbs but not only are they rare but damned hard to fix if you are unfortunate enough to had a mechanical problem. Don't even mention the HKS aftermarket head unless you have bottomless pockets... Keep us up to date on he swap
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