Stagger jetting question

318willrun said

My way of thinking, if a guy has an open plenum, all cylinders are pulling from the throttle plates so staggering isn't helping one individual cylinder. Again, I've not chased down that avenue, nor have I felt the need to. Somebody that's doing it can share their benefits. Waiting to see or hear.

Click to expand...

It happens more than you think. Just because you have a plenum doesn’t mean you won’t have distribution issues. Some of them occur because the booster design is wrong. Sometimes it’s because of the position of the carb over the plenum, even on a single 4. There are issues caused by big overlap cams disrupting air movement in the plenum and also cause a rich mixture, which requires more heat to vaporize the fuel. I’ve seen several times where getting the fuel curve cleaned up also cleaned up distribution issues.