Grandfather's 68 SS Camaro.

[JRC99]

Originally Posted by Too Many Projects

OK, assuming it isn't a flat lobe, are the plug wires on correctly ? Many people get #5 and 7 crossed when all the wires are off at the same time. On that line of thought, are the plug wires all good ? Old, cracked wires can transfer to another and cause a misfire also.

Wires are new, the noise is from the passenger side. Plus, like I said, the last rocker on #8 (I'm not sure which side is intake or exhaust but I know it's the number 8 cylinder) doesn't move much while it's running, and when I checked the lifter with the rocker off, the pop was consistent with that lobe. I did check the firing order, it's correct. Unfortunately, that pretty well narrows it down. Good thing the garage at Pappaw's has a furnace because this sounds like a winter project!