i am swaping my speed dinsity i bought a harness and all the mass air stuff out a 89 lx 5sp 5.0 but on the computer it says automatic, does this matter? if i put this in will the computer effect my 5.0 5spd from running?

 

It shouldn't, I don't think the 5.0's had the transmission controlled by a computer like the newer ones.

 

no it wont matter