Plug reading...

[HwyStarJoe]

Hi all,

Anyone care to read these plugs and give me your opinions?
They look strangely clean to me.

(Forum will only let me post 5 pics... so I picked random ones but all 7 I took look just like these)

It's an old 305 that has a miss when I've been driving it for a while. Starts out pretty smooth but once it's warmed up the miss gets worse and worse.
The reason I'm not showing Plug #1 is because it's brand new.... It's an Autolite AR135, while the rest are new AC R45TS's. The header pipe is in the way of #1 so I have to run a shorty there.
2 thru 8 have about 50-60 mixed highway\around town miles on them.
1406 carb is freshly rebuilt.

After looking at these, I was hoping the plugs could point me in the right direction but there's no smoking gun, UNLESS one of these is just not firing at all. I haven't dug into the wires or HEI distributor yet.

Maybe it's not ignition, but I was hoping the plugs would at least be that nice tan color like plugs #6 and #8. Too lean? It was extremely rich before I got my hands in there and rebuilt/tuned the carb and put these plugs in.

Thanks