[Ragtime Kid]

I am slowly dialing in a set of 48IDA's having changed choke sizes, main jets, float heights, etc. It is 95% improved from where I started and one of the only lingering issues (other than the 6.5mpg fuel economy!) is a stutter/stumble on acceleration through about 3,500 rpm that feels more rich than lean. I suspect too much fuel from the accelerator pumps (or perhaps too much duration or both) because the car will also flood from a cold start given a single shot of throttle priming. The flow when looking down the venture and twisting the throttles is very strong from the squirters (haven't measured the quantity) and I thought I would experiment by changing the sizing of the discharge valve.

What's in there right now is a size "50" accelerator pump (squirter) and a "zero" discharge valve, meaning none of the accelerator pump flow is being discharged back into the float bowl and all of it is coming out the squirters. Weber makes these discharge valves in size 00, .35, .40, .50 -- all the way up to 1.0. Other than getting a bunch of them and trying them one-by-one, any recommendations on where to start? It's a pain to pull them out each time as the carb tops have to come off, floats removed, etc.