You are correct.
And now let me tell you, there is a right way and a wrong way. I did it the wrong way first( spacer plate and not ported). Like stated, it ran okay. Then I was like I need to do this right. Called Kevin who previously did my porting, talked it over and got everything settled. 4 mil porting and domes and gasket thickness. Now that it's done right I can say there is a right and wrong and I went both routes. Just do it right the first time you'll never look back