Lean condition at warm up
 

I have such a lean condition at warm up, I can't even rev the engine after I start it. I've tried to find an air leak but no luck. Is it advisable to take apart the upper part of the fuel injection plumbing,like the air plenum, to search thoroughly for a leak?

Is your CHT sensor on the blitz? It triggers extra fuel during warm up. If you are lean when cold I would check that first.

It measures fine but I do have a new one. I guess I'm going to go through Brad's D-jet troubleshouting guide and check every component. I have a one-carb weber set up that I can change over to, but I would like to have the stock F-I. Either way it's a lot of work.