Fuel Pump Upgrade for Nitrous
 

We're running a 150 HP shot of nitrous with pretty good success in the 1/8 mile but in a 1/4 mile pass its running out of fuel and getting very lean. What is the best option for upgrading the fuel pump? I assumed this had an in tank electric pump but Nitrous Outlet told me it was a cam driven mechanical pump. Any help would be appreciated.