318 head flow

If I stumble across some 318 heads, I may pick them up and fiddle with a couple of ports out of curiosity.
I’d like to see just how hard I’d have to work to get near 205–210.

More work than I’d like to do I’m sure.

The most lopsided pair of heads I recall testing were some 2.02 J heads, which were originally 1.88 heads.
They came to me just for freshening, and were really in good shape overall.
He wanted them flowed “just to see”.
I tested a couple ports on one head and was pretty surprised how good it was...... like 215, with nailhead valves but zero porting.
I was checking angles, etc...... and was figuring the shop that did them really knew some “trick” to get them to be that good.
Curiosity got the best of me, so I tested a couple ports on the other head.......195cfm.
Aaaahhh, okay....... the 215 head was just one of those freakishly good castings.

In stock form they were pretty far apart, but I suspect if they both got the same level of rework, say..... shooting for 235-240cfm....... that 20cfm difference between the heads would have all but disappeared.