[Tracy Robbins]

Super stock production is very similar to modified because you are allowed to use a corporate match aluminum head and sheet metal intake. No brodix, dart, etc... The major difference is you have to maintain stock bore and stroke w/ .070 over bore allowed and .015 allowed on the stroke I believe. So unlike modified you aren't allowed the big bore short stroke and 2x4 set up. Also, carb requirement is a single 4 barrel or a single 2 barrel. If using a 2 barrel you are not allowed to use a vacuum pump. This is a summary but hope it helps.