LS Engine Lift plate. What have you got?

[waynieZ]

Has anyone used the Mac's Pivot with the adapter for LS engines? They used it on 48 hour Corvette. This is my big hurrah as far as big projects go so its a big outlay of cash. I don't want to be cracking the engine open then have a problem only to have GM say its from pulling the super charge off to install it in the car.
I also saw some brackets that bolt to the ends of the heads in a GM video but don't know if someone sell anything like it.

Let me know what you think.

Thanks