Low power or high expectations ?!?
Where was the wideband reading on that? And was that on a dyno or street pull? Defiantly looks like it could be leaned out. I would start there, get the color right, and then start rolling in timing.
If you mix water and methanol be sure the mix is always consistent and at least 30% water for stability. If just alcohol you'll need 100% methanol compatible parts, especially the pump.
Agreed with not enough timing, especially running that rich, fairly low boost, and that low of compression.
Can you put on a smaller pulley without throwing belts or hurting the motor? Fuel system seems more than capable of more boost.
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