had a similar prob on my '78 750k, chrome base of pod on carb #2 would not allow any movement of the choke. i sent the set back for a full refund and put the old aftermarket air filter back on. found out after the fact that i might have been able to bend the choke lever a tad. be careful if you try this. put the refund $ into a braided brake line while i shop for pods. uni filters pk-52 may work for me, check their site. good luck!
bobp