I've run the PA-51 on a pipe, LOVE it  ...NOW I want to try it with rear exhaust. Is there anything different or changes I should know???

Scott

Hi Scott

No they are the same motor ,timing, et all  . just use the same size venturie and shims and it will run identical as long as they are the same series, If you have one with a differant head , you will need the appropriate shims

Randy

Thanks Randy. I have a series of shims from you. Do I add to the case side or the head side IF I NEED TO?

Between  the  head and the top of the sleeve

Randy

Thanks Randy...ONE MORE thing....Do you Carry (sell) RE-Mufflers? I didn't see them on your web sight.

Yes I always have, there are 2 types, Header mufflers, and slide on tube mufflers, these are both cnc lite weight products.
There is a picture of both on my web site on the new product page

The lite weight cnc slide on tube for RE engines will slide on and seal to any standard 3/4 inch header

Randy