soooo heres the issue......its a 88 toyota camry w/ 2.0 4cyl auto...starts in the morning,sometimes wont start when warm,(have to wait to cool off then starts),low power under load or when accelerating,and has a slightly rough idle....now all of this sounds like its either cat or coil...with all this info can someone help me narrow it down??? It has new plugs,wires,cap,and rotor,good compression,and theres zero vaccuum leaks vaccuum pressure is 21 pounds at idle and has new fuel filter... car has 160k miles,timing belt done at 68k miles maybe maf sensor??? anybody anybody????...lol

 

i'd say mini crack somewhere... head, intakes... maybe intermittent fuel supply loss... it's general diagnosis - OLD.
start her up, and give it shots of brake cleaner moving arounf valve cover and head. if it baulks - that's where the problem is.
btw, gosh, forgot the name for the valve.. one that feeds gasses back into intake. oh, PCV can do a lot of damage...