Hi so i started my b20 swapped hatch yesterday and it fired right up with no issues it seems except a surging/hunting idle. it jumps from 1000-1100/1200 then back over and over again. i redid the head gasket, timing and valve lashings to oem spec in the manual. i had a small exhaust leak and fixed it and it ran a little bit smoother after that but still surges. i’m thinking it could be my bigger throttle body and bigger injectors on a stock baseline hondata b20 tune making it sound choppy but i’m not 100% sure. my buddy said it could be the distributor timing, IAC valve or an FITV i’ve read for similar issues. any help is appreciated i finally got my project started and am a little stuck.