Thoes are some good questions. Thanks for the reply.
The fuel pressure does rise but not sure it's 1:1 it's been a few years sense I tested the regulator. The pump is was replaced a few years ago and the alky pump is 5 plus years old but it's not turning on much at 15 psi and at 15 psi I really dont need any running 93 octane I have a snow controller that' s set to start at 14psi and full on at 24psi. What concerns me is the injector pulse width and timming have the jitters around the time it starts spark knocking. I never have any rattle or spark knock noise coming from the engine.
