Uffe.. I guess you never had copper gaskets on the street have you.
Guess what, I have.. I will never do it again. First is the sealing issues around the water ports, then its the sealing issues period, you have to use Hylomar Spray to seal them..and half the time, you'll leak coolant into your oil. So you run some BARS additive to stop the leak... once your happy with that.. first time you detonate it hard, you'll blow a hole rite through your piston.
Been there with a Big Block 462 CI Chevy motor with a Blower.. will never do it again.. Using the SCE head gaskets..copper
Go on and oring..when you blow that hole cuase your TUNE is off.. you'll need to bore the block and buy new pistons/rings....simple headgasket works.. always does..
Take all the fuses out of your fuse box and install hard wires.. same principal.
When your in the 8's and its a race motor only, that a couple coolant drips are no issue.. then do it.
Something always will let go when it goes out of tune..I rather it be a 40 dollar fuse(HG) than 2500 in machine work/parts