Yes
Yes
Careful head gasket selection required, the piston does not hit the head but some adjustment of CR is possible

BTW I saw your other thread about intake manifolds, and chose to not reply for a variety of reasons...mostly the ranting.

Now that things have cooled off, in the interest of helping out:

Edelbrock already designed, engineered, prototyped, and dyno tested a very nice 1x4 dual plane manifold, way back in 2006. It's been done for years now.

I've seen the prototypes first hand, and they look awesome.

If anyone really wants it, call Edelbrock on a regular basis, tell them they need to pay for their own tooling instead of expecting someone else (guess who) to GIVE them tooling for free. 'just make the thing and sell it'.