edelbrock 7276....use these mostly these days since they appear to have the largest port window...they do not come with end seal...I just use RTV on the ends anyway.....
Mopar Chrysler SB 318 340 360 Intake Manifold Gasket Set 1213 2.27" x116" x0060" 12933013040 | eBay
I have used the ones above many times too....never had any problems......and they are NOT Felpro despite the 1203 part number
Usually the gasket is not the problem ...it is improper installation is why they leak
