Racing flow benches

I guess I never finished this story......
The owner asked if he thought I could get a little more out of these heads after re-cutting the seats.
I didn’t want to get into a lengthy porting session with these, but thought a back cut on the valve would help down low, and a better form on the SSR would help up top.
That resulted in:

Lift—— In
.100—— 75
.200——155
.300——207
.400——264
.500——314
.600——349
.650——361
.700——339

VS as rec’d:
Lift———In
.100—— 74
.200——138
.300——199
.400——249
.500——290
.600——333
.650——346
.700——329