KADE Timing chain issue? HELP!

[TOMEI GUY-S13]

Hey so the last couple days ive been hearing a knocking while driving. Just when i let off the gas pedal. I started freaking out thinking it was a spun bearing but Im pretty sure its my timing chain hitting the valve cover. so im wondering if its a MUST to change The chain and guides? Im building an SR and I probably will only have the KA for another 6 months. Advice and Input please.

[fufanu180]

The KA's are known for the crappy guides. I didn't have mine long enough to break into it and take the guides out and or replace them but I've heard many people have done it, especially the top guide. Their plastic.