Thanks for the feedback and the great story-telling...I always love reading this type of stuff because to me anyways it tells a tale of someone learing, trying things and figuring them out. That is utlimately what makes it fun for me. Your porting adventures are pretty similiar to my experience...the first set of heads was quite a learning lesson...I managed to use them...but it was the 2nd set where "all of a sudden" I felt like a pro...only to massively break through the port into the water...ha ha...oops...

Truth be told, I really didn't have a reason to pull the heads off the motor...but since I wanted to freshen them up and the static CR bump along with some further porting/streamlining were just "around the corner" I figured I'd give it a try.

So far I'm done with one of the heads...about 2/3 done with the 2nd one. Need to get to the intake side of the port now and gasket match along with slight widening and roof bump removal.

For what it's worth...I made myself a Helgesen E-bar tool...LOL...what an "adventure"...clubbered the thing out of some threaded rods (I'll post a pic later, meanwhile I've attached a pic of the genuine item) and to the best of my understanding the measuring capability comes from the distance of the meassuring bar and both the bottom and top bars (must be the same). On my heads I unfortunately have an off-set drilled pushrod holes, so while the one side can be opened up to the full 1" width, the twin port could only go about 0.9"...my tool would show a reasonable about of thickness left but on the thin side (0.9" width) I would actually close up the gap...so I think my tool is ever-so-slightly off since I'm not getting a true reading on that side.