Technical differences L/88 vs. ZL-1

[nuch_ss396]

Can anyone clarify for me the technical differences between
these two engines? Obviously, one had an iron block and the
other aluminum. I believe the camshafts were also different.
But what about the pistons, rods and '7115 crankshaft?
I would expect that both engines used a cross-drilled and
Tufftrided version of the '7115.

I believe early L/88's used '842 heads and a closed chamber
piston. By the time the ZL-1 came to be, the '074 heads
were in play. This would have required open chamber pistons
as well. Was this head/piston combination also used in the
L/88 during later '69 production?

Additionally, did both engines use the 4296 Holley? A couple of
years ago on this site, we learned that many, if not all
the ZL-1 Camaro's were delivered with 4346 carbs due to air
cleaner to secondary fuel accelerator pump interference.

Lastly was ignition and exhaust. The L-88 & ZL-1 Corvettes
had the Corvette only exhaust manifold design; where the ZL-1
Camaro's had the standard Camaro style exhaust manifolds.
What about the ingition systems for these two engines? Were
they different?

Nuch