i have an 87se and just did a top end rebuild, new injectors, manifold, the whole top end you might say. But now i have a bad engine vibration at idle. under excelleration in park it revs up good, no vibs, but just lacks quick pedal response like before. seems like a foul plug or something. cant find any auto parts dealer who has plugs for this car also (any advice)...wondering if this could be the air/fuel mixture.

 

check for vac leaks... try to find spark plugs
check TPS... make sure it's set right... did you mess with the MAF ?

 

ok, put in the new plugs, but the rough idle is still there. the TPS is set right, and I never messed with the MAF

 

Vac leak(very likely)
Improperly seated injector(not likely)

If you have time and patience, take it all apart and put it back together again, slowly. Make sure all vac lines are fully seated....

 

whats MAF and where is it located? and y not?

 

MAF = Mass Air Flow, located right behind the airbox or cone filter which ever you have.

Y not what?

 

i tore it back down and did find that my intake gasket had a bad spot so it was replaced. it improved the vibration dramatically..still shakes a little at idle but not half as bad as before. When i took it out on the road it seemed to still lack the power it should. I put new plugs in (T&L). All the compression is good. but just cant get that giddy-up & go it should have??????????????