plugs from my 73's 360

it's ok at speed - horrible idle like it misses badly.

I've not really had time to diagnose, I've done NOTHING but pulled the plugs and looked. 

I am wondering if since the carbs are old Edelbrocks, been in service over ten years, are filthy, if the fact I removed them from the intake and moved them around (tried to keep them upright) and did all that if I haven't gotten some crud shook loose in a carb or carbs.

It's more cold blooded than it was before I pulled the intake, and runs like crap at idle until warmed but then still seems to have an actual miss when at idle and before it warms up completely. After it's good and warm, really warm, or it has been run a bit and shut off, then started again, as if the heat spread a bit in the engine, it's actually better.

Interesting enough - and oddly enough, plugs 1 and 3 are black, the others are more tan looking. Number 5 has a bit of fluff on it while none of the others do.  (keep in mind it's dual quad and although they share a common plenum area, the front carb feeds the front while the back carb feeds the back - the passages are very direct from carb hole to cylinder)

Anyway - like I say, I've not even thought much about it, I have too many other things going, but know how folks like to look and wonder and figure.......... here's the pictures for your viewing pleasure HAHAHA.

Maybe later next month after the dust settles from our trip to Alaska, and after AMO I'll have time to think about this car again..........
Maybe I'll get a compression test worked in and put a vacuum gauge on it although it barely has enough vacuum to power the brakes until it's warmed up and run a while..........

Right now it's too bloody HOT and muggy to even walk outside. Thank goodness for the minisplit I had put in last summer. 

I have NO CLUE as to what was done with the heads - were the heads machined at all? I have NO idea. Possible since the intake fits down solidly against the end seals and the intake bolts aren't easy to start -the rub against the bottom of the intake bolt holes telling me the heads sit a shade, just a tiny bit lower, otherwise they should start in easily if the intake is perfect and all else is equal.

So, open throttles so it can breathe, keep in mind the 280h cam, etc. and totally unknown pistons or head work - and I did three cycles per cylinder so there will be three readings - the initial hit, the second compression stroke, and what it settled down at in the third and final compression stroke - here's the results:

1  110/130/145

3  130/150/155

5  110/130/145

7  125/130/145

2  130/145/145

4  130/145/155

6  130/145/145

7  110/135/140

First compression stroke ranged from 110 to 130
Second compression stroke ranged from 130 to 150
Final compression stroke ranged from 140 to 155

i try to never run plug wires parallel and cross whenever I can........... I know the rules of electronics and electricity now and then