It would be best to have this conversation with the person that installed the cam.
The general rule of thumb that applies to any cam in any car is to set the intake valve rocker when the exhaust valve just starts to open, and set the exhaust valve rocker after the intake starts to close.
You would need the cam card to determine the amount of backlash or preload.
Yes. It's a relatively straight-forward swap.
Yes, but, you will have to defeat the computer, which will probably negate your local smog laws.
Yes, but, you will have to defeat the computer, which will most likely negate your local smog laws.
The 400 Chevy is a small block engine. The 400 BIG BLOCK Chevy does not exist! 402 big block Chevy does. it seems in the early 70s Chevy put 402s in their pick ups and they had 400 badges. this opened the can of worms known as the non-existant big block 400.
yes
Yes.
1,8,4,3,6,5,7,2 all small block and big block firing patterns are 1,8,4,3,6,5,7,2 for Chevy
Chevy to Chevy...yes.
It is a small block
I've never heard of a 388 big block, but I'll say that in general, it's usually pretty easy to install a big block in place of a small block. Requires a bigger cooling system, and different exhaust, but very do-able. Headers are available for this swap.
find a good big block Chevy engine and install it.
Yes it can, you will also need the big block pickup tube