I've got a 7.4L 454 with a Bravo 1 with 1.5 gears.I'm spinning a 25" Mirage at 4400RPM and am getting speeds of 63-65 max.I've met other people with similar setups who are claiming 72mph.,however, I've never run against them.Should I be seeing more speed than this or are others exaggerating.Thanks for any suggestions.