![Help! :help:](https://board.marlincrawler.com/Smileys/marlin/help.gif)
i have a 1987 toyota 4 runner with a slightly modified 22re
(bored, cam ,k&n air filter(air box style) header, muffler)
the problem im having is it hesitates(right in my cruse range) between 2,000 & 3000 rpm, but once it reaches around 3100 rpm it jumps right out of it and runs like a top above 3000, i drive down a moderatly steep hill every day and once i get to the bottom it sputters in that same rpm range in 1st and 2nd gear, then after playing with the skinny peddel a little it pops right out
the truck revs up jus fine out of gear, it smells a little lean. ive tried testing the following parts, : coil/igniter,afm, and im gunna try a different distributer today, it dose have a header leak right above the o2 sensor might that have anything to do with it? any info could help