Since you've taken interest...I'll continue. Reset valve lash on intakes to .013 yesterday, left exh at .015. Smoothed idle further. Cured dieseling on shutoff...???

Detonation VS. ping... My rookie ears hear a clacking sound, when ever I get back on it...in any gear...but typically between 2500 and 3000...which I'm assuming is pre-ign or detonation. It goes away after 3200 and engines spins nicely to 6000 plus at which time one can't hear anything but the noise generated by the tranny...which I think is input bearing or worn layshaft.

As per timing...I'm limited by my earlier purchase of a 123ignition. Currently running on B20B advance curve...which JP says is the slowest...without vacuum hooked up. NGK BP6HS plugs set at .035, 8 mm Taylor wires, pertronix 40k coil (1.5 ohm primary)

As per Mikuni's...bought from JP with smaller float bowls (for mech fuel pump), running size 192.5 mains with standard needles, set at 3 notches from bottom, rubber mounts, integral iron manifold with large balance tube, no secondary butterflies.

Pump gas (91) with Outlaw (ferosene) octane boost, one bottle per 10 gals. Going to buy some 106 oct at Infineon Raceway this week...just to see if it helps. $ 7.00 USD per gal...but only 12 minutes away from home.

AFR meter going in this week...hope to have better diagnostics in future. As we get older...and deafer it gets more difficult..is there something that senses knock or det.??