Short and large diameter runner are for HP and small, long runners for torque I believe. These are long and large runners, so best of both worlds?
Still, the flange doesn't fit the head.....
What If you cut it off behind the flange and weld a EFI flange on it with the injector bosses and port it to match the diesel runners, would this be a good low down torque manifold?
I'm asking because I have a L28 in my heavy Nissan Patrol which could use more low down torque. I'm going turbo with it and want as much torque as possible (already have a P90 head, RB20 turbocharger, flat top pistons)