Hey every one me again tried searching to no good end

Going to start building my own multi port injection intake out of alluminum

Its going on a turbo charged 292 and was curious as to runner length and intake volume and shape. I have a D shaped extrusion with oval runner and very noce velocity stacks

Does length hinder performance and the volume of the plennum is there a rule of thumb for any of this?

Thank and happy inlining


Josh
72 gmc lwb air ride 5 speed (soon) turbo 292 II# 6102