I'm finishing my engine with Champ GN1's.I would appreciate some feedback about head gasket usage for the GN1.I have 3 opportunities, 1) stock victor reinz, 2) titan copper, 3) cometic. I could use any of the 3 based on where my static compression ratio would be. I have no hard data to look at so I'm asking for input based on experience. Any help is greatly appreciated.