I never said towing. I did say truck, but not towing. it's never going to tow, and is a street cruiser. it's just a heavy street cruiser!

as for the lift issues on stock heads, the cam with the 107LSA is from Hughes, and is advertised as "a hyd. roller cam for a magnum engine with a carb instead of EFI" and says that all you need is their springs and retainers, and it will work on an otherwise stock magnum engine...and is infact, designed specifically FOR the stock factory Magnum engine--Head flow, compression ratio, etc.

The other cam is a custom grind Magnum cam, but the guy was using it in a 408 stroker, and his heads were worked.