I thought so too.. but on another note as far as those looking a tad lean, the car since i got it has been unbearable to stand near or even have the door open while running(it has dumps) because the smell of unburnt fuel has been so strong. So I always figured it was a bit too rich. But since it started running like crap i leaned out the carb about 1.5 turns or so and it only was run leaned out like that for the 30mins or so.. not sure if that amount of run time could change what the plugs look like but figured id mention it.. and ok so how do i go about testing those? Also the fuel pump is a newish holly inline pump.. i wasnt the one to hook it up and dont know a ton about them but it looks like its spliced into the stock fuel pump meaning it pulls through the original pump and pickup, at least thats what it looks to me, as i can see the holly pump just outside the tank attached to the original line.JMO
Those plugs actually look pretty good, maybe a touch lean for a carbed car, I think your problem is electrical, voltage at coil or the fuel pump may be dropping.