I took the GN out yesterday and noticed some knock in upper 3rd gear (logged the run). Fuel pressure was at 57-60 psi at 22 pounds of boost. That seems a little low from my old power logger runs several years ago…..the pressure was closer to 70 psi at 25 psi boost. I am thinking my pump is on the way out. Just wondering if I am on target with this issue. Thank you