Like the topic says whats the diffrence between the walbro 225lph high pressure fuel pump and there other 255lph fuel pump. trying to get this for my allmotor set up im gonna be using rc 440 cc injectors with a b&m fuel pressure regulator and gonna be dyno tuning with hondata s300 (dunno if you all needed to know but i just threw it out there just in case) THANKS!!!

 

The HP version flows more volume at higher pressures.