Tell you the truth I'm not sure on the RPM drops. I don't have my tach installed yet. Ralph blew his first ax up in his dart (behind a 5.7 Hemi) on a hard 2-3 shift. I won't run it once I do a Hemi swap (I'll run either a built a500 or a T56) but behind a stock 5.9 I'm not worried at all