Interesting to note these heads are flowing 182 at .400 and no more after that. No wonder cams for 273's are in the low .400's. Just a waste of motion to go any higher with unported heads. Thanks for all your work!
No prob, neat stuff.
In stock form, definitely.
Many things considered.. like the intake manifold bolted on makes the hiccup go away as well as knocking down the numbers a touch...then you look at the factory cams, 340, 383 roadrunner cam, tnt .. all right at the fall off of the heads in question. Chrysler presumably designed that in with both series 273/318 and 340/360 heads. They all hiccup around .490 lift and then reemerge, some, by .550 lift.
The intake port above is probably around 132cc , tiny, but will make the little motors breathe fire without skipping a beat.
