five cyl cam
By itself, I wouldn't expect remarkable changes. You are restricted by low compression, so-so valve size and a strangled exhaust system. These other areas need to be addressed for real gains.
Best mod-for-the-money is exhaust (4kq manifold & downpipe, 2.25" exhaust).
go and find a 2.3 NG/NG engine
either out of an earlier 90 or 100
this will help out..
I got mine for free...
but it sure revs better to the redline now

the pull doesn't go away @ 5500 anymore
-rich
'86 4kq










