It's good to see that I am not the only 'ol fart out here with all these young whippersnappers.
I can still remember the good old days of working on my '66 Mustang. crawling under the hood and having all kinds of room to do stuff. Hell, these days you almost need a college degree in engineering to do an oil change on some of these dang vehicles.
I use to install CB radios & antennas, swap out car stereos & speakers and do all kinds of things to mod out my vehicles. Now I just stick to changing the bulbs to LEDs.

 

You really need to join LED anonymous LOL LOL=Laugh out loud...

 

Yea, and the 'Autozone' desk clerk mechanics will sell you a set of wires for your truck. BTW, before replacing your Engine Temperature Sensor - OR your PCV valve, check with me or @Techrep or one of the other fellow members here.

 

yeah... re-building your carburetor is real easy on these trucks.

 

I rebuilt mine using only a 2lb sledge hammer.

 

THANKS GUYS.
On a more serious note (and hopefully helpful) having to do with OP's post concerning the P0174 Code - do you have the ability to read 'live' OBDII data, such as Fuel Trims?
If so - an exhaust leak is a possibility as appropriately suggested by @ sscottab. And I'd also probably want the tick sound gone. But a vacuum leak somewhere unique to bank 2 could also be the P0174 culprit.
Monitoring fuel trims could help isolate that. Higher fuel trims at IDLE points toward vacuum leak because the 'ratio' of unmetered air is greatest when vacuum is greatest and air flow mass is least. Higher fuel trim readings on 'light-gentle cruise' points to exhaust leak because of the EGR effect, produced by maximum camshaft retard, regurgitating back exhaust gases and sucking in raw oxygen in ahead of the 02 sensor.