ProComp/Speedmaster aluminum heads

I would look at the Trickflows however that comes at a cost..... And even then I would probably not trust them OOTB lol....
JW
Why not? :poke: I haven’t read anywhere of issues to warrant any doubts. Nothing negative regarding machining or assembly. I have seen people (one case in point on this forum, which is common: no follow up) posting about these heads stating they checked them for sealing and yet they don’t post what their finding were!! What’s up with that??:wtf: