I’m building an 1850 engine . 1700 crank ,pinto pistons 7.2 cam fully flowed heads and big valves. 38/38 Weber,What exhaust should I use that will give best performance? Many thanks Joe
A custom one... Or try Sweedspeed in Neer, the Netherlands, they do nice downpipes (and other tuning parts you may need or want...]. The rest doesn't have any complicated bends and can be made from off the shelf components.