I ran a 235 in the mid 16s with a one barrel carb off of a 292 in my 53 chevy. I tried the 2b adapter and my ets went up. Try it youl like it.You will need a split manifold and a good cam if your trying to up your hp. I used a McGurk cam, I believe it had a 500 lift, the head was milled 100 thou., with 383 valve springs. The block was bored 60 over and I had a 456:1 rear end. Many Mustangs and Cameros were sorly suprised on the streets of Wichita.