Thanks for the plug advice. I need to start making enemies, it seems, in order that I gift them with these plugs.

My carb is the big K&B aluminum "square" design, no ribs. I should have mentioned this.

How should I de-junk and clean the carb? Or where should I get my hands on a Magnum .46 front needle carb? I had considered using a Perry carb and pump for good inverted performance.