Re: Weber 32/36...Surging/pulsing at idle.
It's most likely the carb. Did you get all the vacuum hose reconnected to the right place? I hope you didn't use any RTV. If you got any of that on the carb, you could have made a mess of things. The carb gaskets are designed not to need any kind of sealant. If you need it, get your manifold or carb base machined. A lot of carbs have vacuum passages between the base of the carb and the manifold. If you accidentally plugged up one of those that could cause it. The 32/36 is a progressive 2bbl, right? Check to see if the secondary throttle is sticking slightly open. That can cause vacuum leak symptoms that are hard to diagnose. Which gaskets did you change? If you took the carb apart, something internal could have happened. Or you could have dislodged a piece of crud in the idle passages when you moved the carb and it is plugging something up. Or you bent a linkage rod. You might just try holding the throttles open with the engine off and hosing it down good with carb cleaner and see if that helps.
I always kit my carb if I am going to remove it from the manifold. After you do it once, you can do it in an hour and I end up with a cleaned out good running carb. Carb kits are usually only about $25 and you can check to see if you have any internal problems. For some reason I just love rebuilding carbs.
1955 Willys CJ5 Buick 225 V6 160HP 270ft-lbs, T90 trans, Warn OD, PTO winch, Spicer 18 T Case, RS9000's, Dana 25F/ 44R,
5.38:1 gears, 11" brakes, Bestop Supertop, Hurculiner