I'm looking for a fuel pump thats mounts out of tank to replace my in tank one that will support 450hp.

 

Hoooooly crap, there are LOTS of fuel pumps out there that fit that description... take a look at a few sites.

www.summitracing.com
www.aeromotiveinc.com
www.holley.com
www.edelbrock.com
www.jegs.com
www.thunderracing.com
www.tbyrne.com

there are plenty more... trust me

barry grant has some, magnaflow... etc etc etc... try a search as well, i bet youll get enough hits to read through the night...