Best valve cover gaskets?

All VWs have mechanical cams. I adjusted my valves three to four times per year. I'd simply do the following.

1. Set the lash cold, you can do it there are a number of different methods, learn one.

2. I'd start say Saturday Afternoon. Remove the valve covers, clean everything, and adjust the valves. Cleaning everything well only takes about thirty minutes when you've done it a few times. The RTV comes off pretty easy with a sharp putty knife. Total Time: 90 Minutes
3. Put everything back together. Following the above procedure. Total Time: 30 Minutes
4. Total time to remove valve covers, adjust valves, clean covers, glue gaskets in place and reassemble 2 Hours, 3 the first time.

4. Wait 12-24 Hours.
5. Then drive the car.

Yes, you have to wait, sorry no instant gratification. I still remember when I learned the above procedure. I was out in the desert and saw a VW motor that didn't leak, I was astounded. EVERY and I mean EVERY VW motor I'd ever seen leaked somewhere, somehow, I thought it was like a Harley. So I ask the guy, "Why doesn't your motor leak?" He explained the various sealers used, and then gave me the secret. Slow the F Down. You're not in the pits at the Indy 500. You're not between rounds at the NHRA finals. It isn't a race to see how fast you can get the car back together.

Take your time.

Be Meticulous, everything clean dry. EVERY TIME.

After about a year of struggling, my VW motor was finally leak free. One leak at a time, meticulous, cleanliness, and the right sealant worked. That and making sure the motor has enough breathers.

Regards,

Joe Dokes