Some of the leading SFWD cars run Supertech valves.ive heard the supertech valve tips mushroom on b-series, but maybe the newer one are better. b-series also have alot more valvetrain issues than k's. id go with ferrea or even just use the stock valves if they dont have too many miles on them.
PM JR.I'm looking for new ferera vavles, anyone know where I can get these , or supertechs
?