Im looking at making a new exhaust manifold for my redtop, i have a modified std manifold at the mo.
Its going to be a 4-1 setup
And all i want to know is how long should the primarys be? and what dia?
Coz its going in a viento i cant buy a std one as it wont fit and i know i can get a custom one made but i would rather have a go myself as i have acess to pipe, welder and pipe bender (and nice and cheap(free)) which is what we all like
