Posted by Dale Phelps on March 01, 2000 at 14:54:06:
In Reply to: Re: Does Miraphone make a 5/4? posted by Gus Pratt on March 01, 2000 at 13:54:10:
The 188 valve section is the same as the 186, with ~.770 dia. bore.
the 190 section is unique to the 190 and I am pretty sure is well over .8"
bore, but not sure exactly how much over.