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How much money do you have? alba a arms and better shocks would be my pic. Then have a good shop port your engine and youll be amazed at the power difference

I like the solid non-removable tip 8 series with gas and 9 (EG)series in my alcohol motors. Here are the part numbers for standard NGK ES series plugs: Solid tip - B8ES #3683 BR8ES #3961 B9ES #7148 BR9ES #3194 Removable tip - B8ES #2411 BR8ES #5422 B9ES #2611 BR9ES #5722 * R denotes Resistor plug

Have you verified your idle screws actually raise the slides like their supposed too? If it were me I would focus on one area (jetting wise) at a time. Since currently you have no idle make sure your idle screws are lifting the slides just a little, then focus on your pilot/air screw for a nice idle and clean off-idle snap. I have a similar set up as you same carbs, your jetting should be close enough to at least let it idle half ass. It’s been my experience with too lean of a pilot the engine would be hard starting and may idle for just a little and slowly starve for fuel if that makes any sense