Intake mounting

First of thanks to trhis forum I have been slowly getting my 66 rag top Valiant ready for spring.
I am putting an Edelbrock Performer (2176) on a LA 360. I have the Felpro (1213)
gaskets with the sealing surface around the ports.(which side goes to the head) Do I need RTV
any other place than the ends? I know to throw the end gaskets away . One more question: J got New heater hose nipples and the large one fits fine but the smaller one is too small.What
size do I need and how many plugs and size do I need? Thanks for your help (spring is just aroud the corner)