Fluidplay

Question for you engine gurus out there...I put a temp gun on the exhaust manifold and found at warm up temp cylinders 1&2 are running around 80c and 2&3 are close to 200c. The overall engine temp is great running at 72-74c. The numbers seem to get better as the engine heats up and revs are increased, but still 2-3 are hotter.

New injectors, flow tested perfect

What/why would this be???

User 41221

Since the car obviously isn't moving at the time of the measurement, I would think at least some of the reason is the static air surrounding the 2-3 runners is blocked in, so it retains a lot more heat than the 1-4 runners, which have more area to disspate heat.

What type of gun are you hitting it with, and where on the runner are you taking the measurement?