Starting at the first post, the owner did not have a VaporWorx pwm, just a Gen5 pump in a Rick's tank but a poor power supply system. After swapping to a VaporWorx PWM controller, all was good.
After the above, I could not find any others in the next seven search pages. Please let me know of any others so I can address them properly.
I'll be glad to help with a pump, controller, etc. system to best suit your build as well.
I know this is a old thread but informative for me. I will be having my builder call you. we are just now at the fuel system part and I am going to suggest you guys or at least talk with you. thank you