Really? I've never had an issue with that. I've never had to trim the intake ports more than 1/16" either, usually at the bottom. The water ports are easy to trim, you don't even really need to put them on the heads to see where you need to trim.
Any typical gasket cement works. I use a super high tack stuff I had laying around. One set I installed without cementing and around the coolant ports and a few of the intake ports the gasket imploded basically, towards the port. Never had a vacuum leak though, they seal really well, but having gasket partially hanging into an intake port is bound to effect performance. That's on AFR heads though with aluminum bolt holes for the intake, so I torque the intake to no more than about 15lb-ft which may be why it moved some. Using cement around all the ports on the head side of the gasket assures that the gasket stays in place when you trim it and also doesn't move around when it's running. It doesn't require much trimming if you use the right one(there's a bigger port version of the same gasket), but on some setups it may hang slightly into the ports which could generate unwanted turbulence if not trimmed. I'd definately cement it though, to avoid having it possibly move around.
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Best run 13.23 at 106.97mph with a 2.183 60' Times from before tune and driver mod.
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RE: Edelbrock intake gasket question! - 
