I used some heat shields from an old set of pipes, these shields fit snug over half the circumference of the 2 1/4" baffles. So after cutting the disired lengths I covered all the louvers on one side of the baffle front to rear, then I cut a shorter piece and covered part of the other side, leaving about 3" open louvers in front and rear. it was a guess but I really think the sound is great, there is some decel pop but I had that before, except now its a little louder. What I think I need now is a good tune as in TTS instead of the PCV I am running, I believe that would really open up this 110" motor.
Thanks Steve for your input, maybe you should make up some baffles with less louvers for hard of hearing guys like myself ..................... cheers!