going to be good for at least 6 HP and 8-9 ft lbs torque at the wheels. I'll post dyno results before and after the pulley swap.
Actually, SHO shop used to have dynos for the pulleys on their webpage, gain was 4 HP & 4 lb/ft and most have not gained even that much..
You know, I called SVT with that same question about a yaer ago. the guy I talked to said "well, I'm not sure about the Contour but a Cobra they are not good". Since you have been away from CEG, we now have an improved damper, a dual mode damper (available from Terry Haines) that is better than the stck part at reducing crank bending at high RPM. It is believed that crank bending or whip was causing of contributing to early engine failures.
