Picture of 340/360 head porting....Mistakes?

If the floor didn’t have water under it, you could make the floor lower with an even much longer radius.

That’s the “laying it back”.
Starting from the bowl side, and angling the floor back towards the intake surface.

With these heads...... when you go too far, you hit water.
But from a flow standpoint, that’s what works for me.

The X head short turn is laid back more to start with than the later heads....... which is why they’re easier to get into the 270+ range with just normal porting.
The floor is better.