350 block with edlebrock IM. gonna teplace gasket. need tips and trick. thanks

[dead civic]

tsup fellas. before I go off and get my carb rebuilt. I'm gonna replace the IM gaskets. because the IM is leaking coolant at the front of it were some RTV was squished out too.. and i noticed the bolts were loose all around.

I sprayed break clean around the IM and got a small reaction before i noticed the bolts were loose so I'm guessing the gaskets are shott. and that is probably why my truck is acting up the way it is. :/

Question:
*350 chevy block [1979 Corvette 350 5.7l ] do i order for the corvette? or for the c10 5.7L motor?
*edlebrock intake manifold

-what gaskets do i need? regular ones?

-how do i take care of the distributor? anything i need to know?

-do i need to remove the valve covers for this?

-difficulty level from 1-10? [10 being very difficult and time consuming]

any helpful input is greatly appreciated.

thanks fellas.