Rep Power: 198

Hey guys, so I ran dry tests today on my 2000 civic with the D16Y7 engine. Car has been awesome, at around 300K km now and barely anything had to be changed besides routine maintenance. Definitely no complaints there. However I picked up a compression test kit the other day to test a 99 SiR I bought and decided to test out this more miled out civic after doing the SiR.

These are the results for the D16Y7:
Cyl 1: 180 PSI
Cyl 2: 140 PSI
Cyl 3: 160 PSI
Cyl 4: 178 PSI

I'd say its pretty good however under acceleration sometimes I get this after burning sound in the headers almost like a crackling noise and the engine bogs kinda hard (under load). Wondering if maybe that 140 PSI cylinder is the culprit. I still need to get wet compression tests to see if maybe its the rings, however im thinking its more likely a valve issue. The coolant doesn't seem to burn as I never really have to refill it. Let me know if you guys have any input, not really looking for anything too crazy, just would like to see what you guys think. I appreciate the help.