...I used 1/8 Inch THICK Rubber Tape 1.0 inch wide for the gasket; and 1/2 inch thick foil backed (Both Sides) Heat Blanket for Insulation On Both sides of the Firewall. You can get the Blanket in 1.0 Inch thickness But You won't be able to get the Gas Tank back into the original position!
You can find Rubber Tape at an 'Electrician Supply' Or Slice-up a Sheet of Rubber, and go even Thicker! The Thermal Insulating Blanket Material can be found at J.C.Whitney.com ...
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