Intake gaskets

I recently posted a question about the need for end gaskets as the ones I got from Edelbrock didn't come with any. As usual, I got differing answers..lol
Some said no gaskets needed, just use RTV... Some said gaskets WITH RTV... and some just gaskets... I just mocked my set up and to me, there's too big a gap to use JUST RTV... I'm going to pose this question again, with pictures this time, do I need end gaskets...?
71 318 w/ 915 j heads and an Edelbrock RPM Performer intake (7176)
Thanks for the feedback..! Extreme novice here.
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I used The Permatex Ultra Gray Gasket Maker in a 13 oz cartridge. Easy to use with the caulk gun. It fills the large gap front and rear with no leaks.