running lean..help

I installed a vafc and I have a a/f gauge and I noticed that im lean until vtec hits…theres no tuner shops or dyno’s or anything like that around here…I live in utah where all they care about is thier “JACKED UP RIGS”.Im not sure how to richen the ratio…can someone help me out…I know you can do it with the vafc but the instructions are just to complicated for me…thanx