Don't know if you've got one sittin' around, but for the sake of argument a stock 360 2bbl manifold and carb is an excellent bolt-on addition to a stockish 318. All your planned linkages will work. If you don't have one already, they can be had for a song. View attachment 1716453658
I've considered using the 360 intake, but I don't have one or the carb presently. I doubt I'll buy anything as I have 2bbl intakes and carbs for 318's, and I also have assortment of 4bbl's and intakes on hand as well.