My '51 Chevy has the stock 235 w/ single exhaust. I was originally going to go with a set of fentons to gain duals, but due to complications and funding, I'm just gonna get a Y adapter and Y it off after the muffler, which will be in the stock location, of just behind the trans X member, midway between the front and rear doors approx. I know Y adapters are made but are they redially available from the local parts store? I know that www.fordsixparts.com sells 1 for $25, this is what makes me wonder. thanks