Porting small block 915 j-heads

Hello over there , greetings from Sweden.
Found a interesting thread Intro to a port job by @MOPAROFFICIAL porting these heads. Hope you can chime in.
However here are some pics of my untouched heads and have some questions for them who wants to share some info. First of all how much material there is in some places before hitting water or where to grind and not to.
Hope I´m understandable.

We begin in the intake

Is this lump supposed to be flattened out like on the other side of the guide and is it enough with material?
I´d be very grateful if someone can assist with very good pictures and explainings
Off course that could be a problem if there is "secrets" that´s not supposed to be revealed.
I can take advices and pictures in private ;)
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