Unless your are really hot rodding that 305, I would not worry about the tranny being a World Class or not. I had a non-WC T-5 in a 1983 Camaro Z28 that had a 305 in it that put out a wopping 185 HP from the factory. Unless your 305 is built to the hilt, I wouldn't worry about the transmission.


Never hold your farts in. They travel up your spine and into your brain...that is where crappy ideas come from.