I like these from Fel-Pro. My intake doesn't sit flush with the valve cover rail and these are thick enough to deal with that interference. I have even had good luck using them over and over after valve lash checking etc.

https://www.summitracing.com/parts/fel-1...ASABEgKGbPD_BwE


I would imagine they make a similar one for a big block as well.

Last edited by Bad340fish; 03/14/18 12:00 PM.
68 Barracuda Formula S 340