i have reciver grooves in my heads and....

i want to use cometic head gaskets on my new build will the grooves be a problem?i have been reading that most people are using these gaskets in their nitrous builds with success.i have no luck getting the copper to seal I probably have 100 dollars in scrap copper gaskets.i know quench has been most of the problem this time around I will have .103 with a .043 gasket.

I have done 2 blocks (BBC) with JB weld and had no problems, just fill the groves with JB and I used a scotch bright wheel on my 2"grinder and smoothed them down flush with the block, I just mad sure it was cleaned with brake cleaner real good and let the JB set over night before sanding. then used Cometic's and had no issues even spraying 400 to a mud truck

We just hammered in the wire and milled the deck a couple thou. for the block. I didn't have grooves in the head. Not sure if that would work or not. It may if the wire was a tight fit.