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!