Best E58 360HP Camshaft....your guesses

Lose the carburetor. All it's good for is parts. Being an emissions era carburetor it's so lean you're running almost on air.

As for camshaft, I kinda like this one.

Factory Performance Hydraulic Flat Tappet Cam - Chrysler 273-360 298/308
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This cam is the NHRA "Stocker Cam". Not a good street cam for gas milage.