Putting manometer at the end of the fuel line can do two things - to check if pumps backflow valve doesn't let the fuel back, which isn't important to you currently, and also it can blow apart rubber fuel hoses at the pump
You need to measure system pressure, without interrupting system, if you have such manometer, of course.
Although it would be better to remove main injectors and see what they are doing. And the best way how to get pump running is by shorting two fuel pump relay terminals, because starter sound could prevent you from hearing something
P.S. I'm wondering - KE-jet has small sieve in incoming fuel line bolt, clogging of which could cause interesting things, maybe K-jet has the same?
