[Alaska Jim]

only use an aluminum lightweight flywheel in a light car, or you may end up having to rev up the eng, and possibly slip the clutch to get rolling. the heavy flywheel prevents this by way of centrifugal force of the rotation of the flywheel/crank assembly. the light flywheels work in early cars like model A's 32-33's especially when robbed of their "extra" parts like fenders, hoods, etc. I think 8-10 lbs off an 8BA wheel is doable, but should be done by someone who has knowledgeable about how and where to remove the material