-Carbs have just been rebuilt and are clean as a whistle
-Dellorto's have no power valves and they are guaranteed not to be the problem...I've used 3 different carb setups on this engine, each pulled to over 7000 rpm, but these Delloro's pull the hardest especially at the upper rpms
-Fuel pump is newer...I suppose it's a possibility, but highly doubt it my Air/Fuel ratio guage shows no lean spots
-Coil is Accel Super Coil 50,000 volts, brand new 8.8 mm Accel Race Wires, and MSD 6AL capacitive discharge....NO lack of spark here
-Valve springs are used, and not new they've got over 100K on them if not more. I'm pretty sure they're tired.

I called around a few places to find some new springs...nobody could get them except Nissan for $43/set. I'm gonna just throw in the inner springs along with some more match porting/polishing on the head, probably tomorrow and Friday. Should run a lot better, we'll see.

-Andy