and would i have to buy el camino parts for Chevy 1500 tranny or would i buy Chevy 1500 parts for the tranny?
yes
Yes it will, it is the same bolt pattern.
Dextron.
It depends on the transmission and any modifications to the engine.
A Nissan 300ZX? No
You will need to remove the transmission.
If it's a 350 from a Chevy, yes.
It would never hold together.....
usually around 1200-1300 rpm
Yes you can, but a 350 is a small block, not a big block.
There are adapters for everything.
will it bolt up to a700r4 transmission