I have the RobbMC Powersurge on my 71 RR and so far I like it. I have converted dozens of older cars over from carb to EFI and in most cases I modified a new stock type tank over to EFI with a intank pump. They have all worked fine for the most part but a few have had issues with fuel starvation issues in turns with less than a half tank. The traditional rear facing sump with an external pump works great but I hate seeing all the plumbing from the rear of the car. I decided to try the Powersurge set because there wont be any issues with fuel slosh or starvation at any fuel level and the ease of installation. I just got the car together and running a short time ago but I should be drving it a good bit in the next few weeks and I can report on how the Powersurge is working.