Quote: what is the true cost and availability of the other blocks mentioned? also, what options do they have. i know the world block is really just a glorified replacement block with limited options. pretty much the same for the Indy block.
The nitro and alky guys have been running Brad Anderson billet blocks for years now. I bought my first one around 2000. I still have two cast KB blocks that are my spare motors and have been as fast as my billet motors.
