kilderry

Recently purchased a speedster twin with blown mpem. Fitted the mpem conversion kit and both motors now start and run. However the starboard one bogs badly from idle. I have rebuilt the carbs and only thing I don't have info on is the pop off pressure.
What are the specs for this model
67.5 pilots
130 mains
1.2 n&s

Also the props fitted are so las sd-cd-i 14-19. Are thee correct for this model. From what I have read pitch should be 16/23

All help is appreciated