One reason these guys are so fast is the fuel they are allowed to run, a special formula for AU called ROO-25 worth 15hp on our dyno over C25, much like Q16 we use here. Also these guys are working on the cars/engines/setups much like our pro stock guys here, everyday. We have already had 4 cylinder head designs in three years, dynoed endless ring/piston/camshaft combos and built prob twenty sets of carbs, these engines make 2.8 per inch on a conservative dyno, thats an awesome figure for 400 inches and stock bore centers. This is a highly competitive class, we need a heads up semi affordable class here like this for small blocks. The Ford went .987 down low this past weekend on his 7.03 run. Thats wicked quicked in the 60ft. especially since it is 100lbs heavy for B/A legal 400 weight. Just a bunch of smart and competitive guys.