I have to confess that I'm one of those oddballs who put 'Jedi' down under Religion in the last couple of census. (plural form?)
Consequently I am duty bound to stay away from the dark side.
However, cognisant of the weight differential, I'm going with one of the shorter deck height blocks and Don has helped me out by removing excess material from within the block (mostly from within, or the bottom of, the cylinders) Applied alchemy will result in the conversion of iron to aluminium for some components to further help in this regard.
Hopefully this will result in more of a swap than a conversion.
I guess you LS lads can show me the way around the track at the next ShelbyFest
LoBelly