I'm going to try to port a set of 333 heads and am looking for some tips on doing this especially pictures showing the best areas to gain usable flow,I am looking for improvement that won't require super high lift (more than .575)or high rpm(greater than 6000-6500 rpm) on a 427-440 inch stroker.I don't plan to do much to the floors of the ports since they don't typically help much.I am hoping to use 2.19-1.72 valves my machinist has already said he would rough cut the seats and throat and finalize after the porting.I have seen comments where opening the throat for larger intake valves actually gives a less advantageous short turn is this true if so would it be better to hand open the throat avoiding the short turn area?I also have seen comments about the top of the port near the intake bolt about not changing the taper of the port width.What are the don'ts regarding this area?I also saw a post of someone that had cut a 333 head into 8 pieces if they could post pics showing the thickness in the cross section of the intake and exhaust ports and pics showing the thickness of the area under vale spring seats that would be awesome.