what are you looking for? there are several upgrades including stroker kits, big valves, cams, roller rockers, billet side covers etc.. I'm in the process of building a wf now with a 356 lift cam, arc beefy rod, billet side cover, big valve head, comp push rods... I also have an Intek 206 I/C block I built WF pisto, crank, arc rod,big valve animal head etc..