This is probably a dumb question. i haven't been around a Z car ina very long time. I have a 280Z. It runs okay, but misses a lot, and backfires some. I'm thinking maybe that I have the plugs switched backwards. Which side is #1? Thanks guys.
Radiator end of the car is where cylinder numbering starts.
The #1 plug is furthest from the transmission mounting flange, #6 the closest to the transmission mounting flange.
It is progressive from 1 to 6 in between going from "#1" towards "#6" 1,2,3,4,5,6 in that order.
Don't laugh guys, on V8's, it can get strange. Is it "1234" or "2468" or "5678" or "1357"---all these possibilities exist on one side of the engine....