PMO carb tune + hesitation at 4k RPM

[zenithblue71T]

hi all,

My 1971 911T has a freshly rebuilt 2.2S with solex style hot cams, 40MM PMO, stock Bosch CDI, Bosch dizzy, Pertronix Ignitor, SSI heat exchangers and and stock Dansk exhaust.



You can see my PMO settings in the attached image:



My latest dyno run is here from Turbohoses:



I have two problems I need to tune out:
1. It's running lean.
2. I have an annoying hesitation and stumble at 4,000-4,300 RPM I want to tune out. I can accelerate through it no problem but can't hold it say when I'm going 85mph in 5th gear. It stumbles at 4-4300 RPM, especially when warm.

But first, I want to address the motor running lean and popping so it's been suggested I swap in:

1. 1.30 main jets
2. 1.70 air correction jets.

I bought them from CB Performance Products.



My first question is a dumb one, I have the new parts and can't figure out in the diagram where to install new main jets and new air correction jet.

Weber diagram as I couldn't find PMO exploded diagram:


Any help would be appreciated.