I've had a BUNCH of bad experiences with INDY and their -1 pushrods in their kit.. I figured out ( after chewing up a rocker) that the intake pushrods and the exhaust pushrods were .050 different.. Also the cup size (raadius) was different than they gave me in their -1 kit.. It took a call to Smith Brothers to order a CORRECT set of pushrods... I haven't had ANY PROBLEMS with SMITH BROTHERS (unlike Indy)..... FYI...