hylomar is blue paste it is sticky this what is used on air planes engines hylomar and string is how air plane engine are put to gether this seams to work you can get the string from a air plane supple company put the string a round all water ports and stick it to block with the hylomar and the head studs or bolts be used on the part that goes in the block if not water will wick thru if this is stock block . the head gaskets may not be as soft as they can be heat them to color with a torch and set them in a pan of water.you can see down the blower with carbs off the rotors on the edge if lined will have teflon on them. as the boost 10 is a good place to be so you could try moving them bottom to top or getting the right one the best way is to check with a boost gauge and go from there. you try to find copper head gastets that have in with inbossed with printed seals on them i do not know if they are made ? some guys use yamabond in place of hylomar i hope this helps i have built 6 blower engines not one had copper gaskest on them i do not like them they work good at the track on top fuel engine or very hi boost engine