Quote: Use Ultra-Seal gaskets, and a film of copper silicone on both sides. My old set of Hedmans sealed right up using that method
Worked for me too! Paper gaskets will not last as long no matter what you do to them.
1970 FE5 Duster 360/904/3.91's SOLD
1973 TB3 SpaceDuster 340/4spd/4.10's SOLD
Moparless for now but when the opportunity is right I'll have another one.