The stainless headers that you see advertised are not a header in the true sense of the word but closer to a tube version (read that cheaper and easier to make) then the two castings currently on the market (Williams and Fenton). The only true header currently on the market is the Clifford header. Good tube header but pricy. Clifford use to make long tube headers for various 235 installations but the patterns were lost after Jack Clifford's death. So you have a couple of choices. You could convert the stock manifold to a dual out let or true dual manifold and retain the exhaust heat function of the stock set up. You can use the plain steel or stainless steel so-called headers that are on the market. You will need to heat the bottom of the intake with hot water to get the carb or carbs to run right. You can tinker with fentons and use the gasket hookup (also requires hot water to the bottom of the intake). The threaded ports for exhaust heat are not that efficient and don't really work all that well. Hold out for hot water. Or you could use the Williams. Given your parameters, if it were me, I would probably opt for the Williams set up, regular exhaust donut for the hookup flange, hot water to the underside of the intake, cross over tube to connect both sides of the exhaust after the exhaust manifolds and before the mufflers, dual stock style 2" mufflers and 2 inch tail pipes.

Last edited by mdonohue05; 05/30/17 06:09 PM.