Air gap intake and heater hoses

Have a look at CVF Racing for those pulleys.
I`ve used brass fittings for over 40 yrs. in plmbing, and on 4 diff hotrods, have never had any trouble w/ them breaking from vibration or rot,much unlike the steel ones that rot and rust out. Two 10 sec. cars , one 11sec. pick up, and now an approx. 723 horse stroker motor------all brass !