I also have a question about the catalytic converter.
I had new exhaust put on it when I bought it and the guy said he didn't know why there was a cat on it and recommended I take it off.
He said because there was only one o2 sensor pre-cat that it wasn't required. It's a 1993 p30 chassis 454 chevy, any idea? At the time I didn't question it because I was in a big hurry.
Much appreciated.