Checked out Dynotech and found they made over 170HP with stock pipe and engine (no porting or head). Added restrictor in exhaust to match 2010 spec, Boyesen rad valves and a timing key. Used a box to play with fuel a little and got up to 175 using Torco additive and 170 without. Peak power was at 8100-8400 RPM. Thinking of trying this combo to see how it performs. It was stated that 20 HP was found for under 1000$. This was all at low elevation and may not work as well for 5000+ but can't see why it wouldn't improve over stock.
I have everything in my shop already to try it so no skin off my wallet just my knuckles.
I have everything in my shop already to try it so no skin off my wallet just my knuckles.
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