If you go with the boosted dual piston MC, be sure that it has the same diameter bore and volume displacement as the original part. Most vendors will have no clue about either one of those questions, so you'll probably need to do your own research on the subject.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!