225 turbo motor

Edit: I'm assuming this is a 225 slant six motor....? You didn't specify?

A 904 will fit that 225, but you'd better make sure it's a slant six 904 and not a small block! Any turbo'ed motor is going to get the best performance out of fuel injection... check out http://slantsix.org or http://slantsix.com for a TON of info!