PRO SYSTEMS
I have finally gotten out with my new pro systems 4150 carb on my 388 sbc.. my E.T. went from 11.10 123 mph to 10.704 @ 126 mph - my 60ft went from 1.533 to 1.492!!
Tuning was a breeze and i only had to bring the jet down 2 sizes prim and secondardy. And opened up my 4 courner idle's by 3 turns out.
Patrick at pro systems builds a great carb and delivers the performance he says!!