Weird idol and no power when driving

[FabFive727]

Have a 1990 TBI 5.7L v8. Starts up fine but after warmed up starts idling funny. Got a new distributor, ignition coil, EGR valve, EGR control solenoid, injector spray fine, PCV valve, throttle position sensor, map sensor, idle air control, oxygen sensor, and and did a throttle body repair kit.
After it’s warmed up, I noticed a ticking sound coming from the engine compartment on the passenger side not sure what that is.

Any help would be grateful. Thank you in advance.

I'm a total Amateur at all this, so don't annihilate me for this recommendation. I had a similar issue and all along my spark plug wires were to close to my headers coming off the block. They eventually cracked from the extreme heat. Just a shot at a quick, easy and cheap fix.