Help what EEC is this?

[my2foxes]

Working on 86 GT that previous owners had installed a non ho 302 in . Fixed that , just want to make sure they didn't F up anything else ....
numbers are E6sf 12a650 j1b

I know E= 80's and 6 = 86 so is there anyway to tell if this is a computer for a HO motor or out of something else like a t-bird or something ?

 

[HISSIN50]

Do you see a V, another letter, and then a 1 or 2? This would be in big font.