Fuel pump is stock. It is only a few years old. The car was originally a /6 car so it is bound to have small fuel line throughout. I will have to dig through my stuff. Back in the day I had a Sun test kit with a remote fuel pressure gauge.
I question the vacuum secondary as well. I put the lightest purple spring in, but didn't notice any change in performance. I will have to tie a bread tie on the vacuum secondary rod and see if it moves during a run. I think I can get my hands on a 650 DP, but with it being used I am sure it will have a different set of problems.