hotroddaddy, gas class cars were classified by engine cubic inch to vehicle weight. You can use any engine that you want. There were guys that ran sixes in the gas classes. It would just have put the car in a lower class. If you go to www.gassermadness.com as previously suggested, there is a history section with the rules and how they changed over the years. It will give you the class breakdowns. What most people don't realize is that most gas class cars were not the highly publicized supercharged monsters that were the face of the gasser wars. In fact, in the beginning, the gas coupe and sedan classes were designed for modified street cars that did not fit into the stock classes. In fact, in the early years of the class, all of the street equipment had to be in place, including front bumpers. Of course, that all changed as the classes progressed.

You can use that 283 with any induction that you see fit and it would not be out of line. Sure, many of the cars were injected but many were not. The engine in my Anglia would be fairly typical of a non injected small block of the day with the exception of a few details.