For my Mustang, I use a Abaco MAF meter. Fully tunable, not sure if they offer anything small enough for the 4cyl. I run a 95mm one on the Mustang.
2004 Sonic Blue SVT, 1,185 of 1,978, K&N Filter, Steeda Tri-Ax, Steeda Front Strut bar,Eibach Sway Bars, Fog-Light Mod, Yellow Fogs
1990 Mustang LX 5.0L, Project/race car Vortech'd, DSS Forged 331ci Stroker, 10psi