Speed Density or MAF 1988 GT

My neighbor has a new toy. It's a 88 GT. He says it is Speed Denisity (Federal EMissions, not Cali) and I thought they went to MAF in 88 and the last SD was in 87. What's the best way to tell the difference? Thanks!

Only original California cars had Mass air in '88, all "49-states" cars still had Speed density.

Easiest way is to look at the intake hose/tubing. Near the intake opening there is a MAF which has a black square (about 1.5 x 1.5 inches about a 1/4 in. thick) ... its the "hot wire" sensor. If it ain't there - then its a SD.

X2. Should be a speed density car. Unless someone converted it.

Jet

what all do we need to convert it? It is a 5spd car.
We do have a A9P ECU we got from a friend.
So we need the MAF, wiring and what else?