Are you guys sure about a lite weight flywheel with such low torque engine. Usually you use weight of the flywheel to increase torque to the wheels. I have driven 400hp 5.0 engines that just did not have the snap after a aluminum flywheel was installed without keeping the rpms way up over 4k rpm. If you road race I could see it because you would keep the rpms up because it will rev faster out of a turn but daily driving and if you drag race I can't see that flywheel helping but hurting to move the mass of the car. I still think that as cheap as a V8 rearend is and as hard as it is to find 7.5 gears and they cost more that the V8 rearend is a better choice.
Twin Turbo Intercooled(TTi)