93 Octane

New 2 step colder plugs at .018. Car is smoother but threw CEL for cyl 1 misfire

Experiment

New plugs

i still see the drop off around 6.2k rpm but i pressure tested it to 22 psi. I found 2 small leaks and fixed them. i dont see any other leaks but im thinking about pressure testing it again around 25 psi

200 cell cats