ok you have a 2.2 or a 4.3 and do you have a current pic of the engine compartment?
you could custom paint you valve covers, add colored plastic wire covers, colored hoses, paint airbox etc. it is all up to your imagination. most of the dress up stuff for a v8 will fit on the 4.3 with the exception of valve covers and some other things but most is the same.
or put globs of paint on your fan and close the hood and rev it that might produce a very interesting an unique look!