Intro to a port job

LOL I poured mine and didn't write it down.

I make a spacer to space up that bolt boss on the short bolt. That way I can grind the roofs all the same and the spacer fills in the hole where you break through.

I'll do the same thing on my W2 junk.
I do the hard washer in the bolt recess as well. These I want to be 'zero problems' or '100% reliable without a doubt' 'to last like OEM' for Randall. Not that the washers become an issue, just that this is not a max effort port job. We are about waist deep. 10 more cfm would be chest deep... and you gotta ask if you handle the disappointment if it hits a water jacket or head bolt..
I'm in the process of doing just that for a set I'm working on. I think Mopar used to make a kit to do just this back in the day.
I do that too. These heads are meant to be as reliable as OEM without a doubt, nothing special needed , and the last thing to blame if something fails.. lol
I'm not sure how thick or thin the ports are, while they seem the more meatier heads cast by weight.. that could be in the shell, rails ,deck and not the ports. Who knows. I have a set of 915 J that have the washers in..they are more a max effort started out as not caring if I put holes into them...they are huge ports..they were a 'point maker' for me aimed at all the nay sayers of the time..
They still put most peoples heads to shame, across the board for a 2.02.