Hi every one I have my new to me 86atc250r , it has a PT national barrel, PT rev pipe, 36 mm carb, but std reeds. What is best to use for optimum performance , is the boysen rad valve any good ? Seen a lot of different ideas , some look good , some look like cad designers gone crazy !!! I do want though what works the best for midrange to top end ?
Cheers guys .