Single Plane or Dual Plane? The Great debate!

The M1 I had here and the SD were just about identical. Same height, same plenum size(by looking at them side by side). It was a customer supplied intake that he really wanted to use. He is super happy with the power and thats all that matters.

HP can be calculated from the torque posted.

BSFC was in the mid-low 400's for the SP and low 400's high 300's for the DP