Best exhaust header upgrade for 2F (3 Viewers)

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I made custom brass stepped washers to make up for the thickness difference between the header and the OEM intake. I used longer "studs" with stainless steel nuts with anti seize compound. I made sure the surfaces were flat. I used 2 man-a-fre header gaskets that were soaked in warm water for 1/2 hour. Torqued in sequence by 1/3. After it heated up good I did the nuts again at 100%. After a few dozen heat cycles I hit them again at 100% The system has been on 2 different engines 3 different times and has never leaked since like the 80's.

I also cut a notch in the air filter bracket so a socket would easily fit that nut under it.

Later I made a fluid heat riser for the bottom of the intake to help prevent carburetor ice in the winter.

If I had the money I'd buy the stainless unit.
 

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