Milling the Heads How much?

KB 167 or similar speed pro etc. Hypers are great pistons for the $$. Stock rod is fine to about 6500 rpm and after that you should go aftermarket.$$ wise the stock rod is alomst as much. I'd just go aftermarket,but there are refurbished stock rods available at PAW for a very reasonable price.They are resised,shot peened etc.