[CobraDan]

Superformance and BackDraft Racing are both turn key only from South Africa, BackDraft is $10,000 cheaper in price. Superformance can be had with a small block or a big block and at first were sold that way about 50 /50. Today it's more like 90/10 small block being the choice. BackDraft doesn't recomend the big block installation in their cars and will not install one. I know a lot of people who own both cars and both seam very happy with their choice. I would have to have a big block installed, so then my choice would have to be Superformance.
Dan