400 BB Mopar dyno test

moper said

Brian,

I know this was more of a "what will it do" session but did you happen to test without the spacer?

Click to expand...

No, but most times...especially if the combo wants some air, the spacer will add about 10HP and improve both HP and TQ curves when used on a dual plane.
I'm waiting for the OK to post our other results from the topend swap...