I would like to know the same thing. My situation as follows:
1) at 5400 ft elevation
2) Chevy 235 cu in
3) Weber 32/36 installed a couple weeks ago ( actually an EMPI, a china knock-off from Tom Langdon bought several years ago)
4) mechanical fuel pump 5.5 psi, fuel flow in gph?
5) Running very rich, plugs black, AFR reading 10
6) truck does run/drive smooth, have had it to 60MPH, but due to rich condition have not driven it much
7)Jets out of the box;
Idle Prim/Sec = 75/60
Main Prim/Sec = 145/150
Air Restrictor Prim/Sec = 160/170
Emulsion Tube Prim/Sec = F50/F50
8) Am now trying to figure out what jets to buy.
Have you got your carb dialed in?
