No spark on cylinder NO. 2??

[1972GMCsierra4x4]

So ever since I put a newer motor in my truck it's been a turd. I know that stock 350s are huge powerhouses, but it was bad enough I needed to check it out. So I pulled my plugs and saw that my number two cylinder was fouled up and wet. Voila, I found the right cylinder. I didn't have the tools to check compression so I tested for spark first and there isn't one. What could be causing this? I'm asking because I am running a Pertronix Ignitor II distributor, and I don't have much experience with them. I know all my wires, plugs and coil are good. Does anyone have thoughts on what could be the problem within the distributor?

[Wrenchbender Ret]

Its either the plug wire or dist cap.

[geezer#99]

Originally Posted by Wrenchbender Ret

Its either the plug wire or dist cap.

Or a cracked sparkplug!

[jjzepplin]

Timing light will tell you the culprit.

[68gmsee]

Originally Posted by jjzepplin

Timing light will tell you the culprit.

Yeah, I've always used a timing light to test for spark in my vehicles. I just clamp it on the plug cable.

You can also hold the plug against a grounded surface and see if it sparks when cranking. If it does, then a compression check, or better yet, a leak down test would tell you if it's burnt valve, rings or valve guide fouling the plug. I've also found more new defective spark plugs recently than I recall ever having.