so I went over to pearoa today, Bretts been trying to reduce the detonation I've had trouble with, but its still fairly bad, I also tried colder twin earth plugs, but it only marginally helped.
so I'm convinced it's a mismatch between the cams and exhaust pulse tuning, as it didn't have a sign of detonation with the tapered header and the stock cams.
so I'm pulling the mtr and reinstalling the stock cams albeit with more normal timing than they were stock.
stock lobe ctrs were 94 /104 degrees, I'll probably go with 104/106 for a broader power spread, and hopefully no detonation .
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