does anyone know what fuel pump is used in the vortech v3 kit or and adequate replacement?
the parts list says walbro 68gp but I can't find it sold anywhere but the vortech site. would I be able to use a walbro 255 in conjunction with the ss box and fmu from the kit?

 

if you use a bigger fuel pump, you dont use the FMU. Just the SS box.

The FMU just raises fuel pressure to get more flow from the stock pump.

 

So I could just replace the stock fuel pump with a walbro 255 and install the SS box and need no additional tuning/ecu modifications?

 

Yes, Install the Walbro 255, get rid of the FMU and AUX FP, but you will need to Tune the motor with the SS Box. The Maps that come with the SS Box are just Base Maps......

TimRod