Edelbrock aluminum heads 60179 or 60779?

With alloy heads, I have run a Dynamic Compression Ratio of over 9.0 and cranking cylinder pressure of over 185psi, still on 87E10 @full timing. If you don't get up to there you are leaving;
a little absolute power,
a modest midrange power
a lot of bottom-end torque, and
a very significant potential to make big mpgs
on the table; not to mention snappy throttle response

So here is what I would do;
what I would do.
I have successfully run , as have others here on FABO, a Q of less than .028. I have heard as low as .020...... so, If NONE of your pistons (check them all) are higher than .015 up out of the hole, I would run the FelPro .039s for a Q of .024, which I am comfortable with.

With 4.08 bore, that .015 pop-up is -3.2cc
Gasket is ..................................... 8.8cc
heads should be........................... 63.0cc
Eyebrows are................................. 5cc
Total is chamber volume is............. 73.6 total
Your swept at 4.08 bore is 710.2.. So your Scr comes to
(710.2 + 73.6)/73.6= 10.65 Scr, nice.
Wiki says elevation Medford is 1300ft so;

So I choose the 268/268/110 cam to keep the pressure up for starters
With an Ica of 60* that will get you a
Dcr of 8.74, a pressure of 177, and a tire frying P/V index of 147
which is about as good as it gets
This is what you need with a manual trans and will allow you to run down to any gear you want; you will be able to trade away your 4.10s.
With that small cam, and a stock heavy flywheel, you you should be able to idle that 340 down to 500/550 in gear on hard flat level ground to about 4.5mph with 3.55s, or 3.8 with the 4.10s (both with a 2.66low gear, and 27s). You are gonna find this to be very important some day.

Yes you can, run the bigger cam. I have been running a similar 230/236/110 cam since 2004, in my 367) allbeit at 11/1 Scr @same 177psi, and while it is a total rush at WOT; how often do I need to spin tires to the speed limit...... and it is hard on fuel; which at the rapidly rising cost of fuel, is gonna hurt

But I gotta tell ya, the lift on that 268 cam is sadly lacking, and the acceleration ramps on that cam are likewise slow; you could do a lot better. see note-1.
While P/V of 146 is pretty good and a lot of fun, this indicates that you could drop the Scr a hair, which I would do by increasing the the Q to the max. With a gasket of .054 the the Q drops to .039, and the new Scr is 10.22 and the new numbers are;
Dcr of 8.5@167psi, with a P/V of 140 which is the lowest I would run. And I would not install any bigger cam than the one that makes an Ica of 60*. But it sure wouldn't be that low-lift Comp 268/268/110
I would look at the VooDoos or the Howards, etc; both at 268 and see what's there.
Note-1
Don't get me wrong, the Comp will be a fine long-life cam. But it is not tickling the potential of those heads which you paid a lotta money for. I think you can get the .050 up to 224* and lift up to .550 still with a 268advertized even if you have to go to a 108LSA.
note-2
Try to find something like this; 268/272/108/54 overlap rated at .008 tappet rise, and 224/[email protected], hi-lift whatever you get. This has a Power/extraction cycle of 114* which has the potential to make great mpgs with the right rear gears. AND the combination of, the increase in intake duration of 6*, plus the increase in overlap of 6*, plus the more lift; is pointing to an increase over the nose of at least 12HP ; with NO LOSS of torque or fuel efficiency while cruising; Oh yeah but with a lil more idle-lope.
Happy HotRodding
done