Serious Help needed
and I like what I am reading about The Patriot stage II LS6-style cylinder and the TSP 231/237 from TSP...but I am sure that there is other alternatives to those products...I have read a few posts about select individuals who had some sorta clearance issue with valves??..could someone expalin what thats about and has TSP taken that into consideration when building the new heads? or wil I have to alter or change or do anything before these would go on? 
