Im thinking about putting together a custom turbo kit and I wanted to know if a Greddy T78 turbo charger woul fit in to a 1997 SOHC neon. my neon is an automatic by the way.

It would fit yes... but you wouldn't be able to spool it... unless you were going for solid drag and ran nitrous as well... a T-78 is a huge turbo 2 liters is gonn ahave a hard time spooling that up... Plus Garrett turbos are not that effiecient, you want a good turbo get a holset or a mitsu turbo.