That's where the extra "Stocker tricks" come in as well as paying attention to ALL the details - blueprinting to minimum specs, low tension rings, honing with deck plates, light oil, get with the cam manufacturer for a "Stocker" cam with the spec lift, but lots more duration & other custom specs........just for starters. But you don't need to get that much out of it since the E/CM index is only 11.50. I don't have the min. race weight handy.

As long as you can run under that, your good to go. Just gotta watch for any other E/CM cars that you might get matched up against on the ladder.

IHRA Stock class indexes.