I just purchased a 1968 bronco and it has vacuum wipers. I am trying to find a fuel pump w/ vacuum pump on top. It has a 289 v8 and the gentleman l bought it from told me he looked everywhere and I haven't had any luck either. If f they can't be found is there another way to make them work? Maybe someone has created an aftermarket electric pump that could make them work? Does someone possibly have a expanded diagram of that pump. Could a 6 cylinder be modified to work? Would really like to keep my bronco like it came from the factory.