Sounds like it worked pretty well.
That is a big duration hydraulic flat tappet cam! 268 at 50 ! With a torque peak around 5000, but good torque down to 4200, that converter might get a stall speed close to 4000ish and work fine.

The reverse dome and matched chambers will work well at 10.2 CR and pump gas. I have run more CR (10.5) with iron heads and less cam (245 hyd and 256 solid) with the same piston design.