Spark knock at 15psi

[whoosh47]

cant figure out why i have knock at low boost i'm running 93 octane with 100% meth I have attached a power logger file

 

[pmesfun]

Fuel pressure rising 1:1? How old is the fuel pump? How old is the alky pump? What is the alky gain knob set to?

 

[whoosh47]

Fuel pressure rising 1:1? How old is the fuel pump? How old is the alky pump? What is the alky gain knob set to?

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.