u know, now that you mention it, we have enough torque down low to sacrifice some....
i dunno, maybe we if figure out how to fix the other issues like low idle and bogging on first then the manifold would be much better.
i have it installed...and to tell you thr truth, i have gotten so used to the issues that i don't notice them anymore
Low idle? bogging? are u sure this is from the IM? Are u running aftermarket engine managment?