>> points - .016
Crack em - .0180 to .0200 (dependin on which works for ya)
That's a mild advance for better topend.
>>sprocket frt.26 rear 22'
Stock, no prob - I'd go 27 front with a stock rear.
>>plug - NGK B5hs
Chuck it, replace with Bosch W8AC
Upgrade from the Stock DelLorto (12mm?) to like, 15mm Amal.
Yowza!, too rich...51#-#53 stock...but save that #57 for when the BiTurbo goes on !
Flawless...don't mess with it, milling the head won't get you no more.
Didja check the port from the cylinder ? that tends to clog up too.
>>all in all
Mostly your mix is too rich, is the problem, but the resta that should help too.