who is running a stock slant six

The 66 Valiant convertible I had about 6 years ago had a stock 225 auto in it. I used it for a daily driver for about two weeks. It was fine in city driving, had really good launch from idle and ran well. It ran good enough that I never thought it would have been worth the effort & expense to change over to a V8. Wasn't impressed with the fuel economy, it was about the same as a 318.