Carb tuning, larger accelerator pump nozzle?
Well, just to circle the wagon, boy I feel like a 1/2 idiot. Not full and I'll explain that later.
So genius here (that's me) install a brandy new flashy black Lokar throttle cable during carb install. Works great, looks good, does its job "if" the cable is 99.9% tight. Well, mine had about 3/4" in slop. As in it was too long and I had excess cable at the pedal. Fix that and it helped a lot but the lean bog remained, just not as pronounced. I chalked it up to me getting used to the diaphragm clutch and just driving the car being a new thing for me. Plus this is the only manual car I have now, so call me rusty using the left leg.
Other than moving the IFR down and plugging the middle emulsions holes, I returned the carb to box stock. Issue remained, so I used a white cam. Still off throttle bog. Installed the 37 Pump shot and when I returned the car just wanted to idle lean, which it hadn't before, checked for vacuum leaks, found none so I reset the idle mixture screws to 1/2 on all four and got it back to being ~14:1. but it ran odd, so I closed the secondary as far as it would go and not bind, idle dropped so I opened the primary to compensate and went for a dive. Holy crap, now this thing works like it should. No more bog, goes like hell but its rich on acceleration (not WOT, just moderate up to 4K) like 10:1. Cruse isn't bad at in the high 13s.