my old 89 had super powers, 89 gte, 3 inch elbow back, a/c delete, solid mounts. 10psi made 278whp, 315wtq, 11 psi made 283whp, 323wtq, and 12.5 psi hitting fuel cut made 295whp, 350wtq. damned if i can make a 7m make those torque numbers with that setup again....