302's with 1.88's... thumbs up or thumbs down, lets see your pics

Mr. Sinister said

Frank is my name Justin.
I asked the question about the picture and post because new procedures and products come out and not everyone is aware about them.
I was taught when you going to mod cylinder heads do a good 3 angle and blend the port work into the valve job. So maybe the 4th angle might work or maybe it’s not needed.
This info was passed on to me by a guy named Tim Connelly- cylinder head development for Chrysler and Arrow Racing Engines. I worked at Arrow for a short period of time, I don’t consider myself an expert but reasonably informed.

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Frank, the title says why. 1.88 in a 302 head. The 60 alone wont cut it and leaves a lot of hand work to be done. That's the clear difference and why I titled it this way... because in general .."modified" could mean almost anything.
I've found also that you plot your 60, you grind/blend the 75/70 to the plotted 60 line...then once you get it blended, flowed, and are happy... you touch the 60 once more to just sharpen it. Seems to be good for almost 20 ft lbs of torque than if you slightly blend into the 60. Of course it depends what head ,for what and so on...then the whys.
Too thin a 45 suck as does too wide.
.060-.045 wide on the 45 and .075-.100 wide on the 60 is usually where I end up on these .
Starts to sound too general/broad a brush. Needed, imo , with a 1.88 into what was a 1.78 seat, but I'm not the end all. Thanks for any/all contribution to this thread.
You must have many pictures to illustrate the 3 angle approach to 1.88 upgrade, looking forward to them.