Agree. One change at a time.
What is the part number on that intake? Is that an air gap? Does it have provisions for the choke coil on the pass side?
The Edelbrock 2101 should be a direct swap. The air gap I'm pretty sure does not have provisions for the choke coil, so it needs to be converted to electric choke.
Good document to have on the quadrajets:
http://www.capitalcorvetteclub.ca/at...ng%20Paper.pdf
If you really want to get into tuning, a wideband air fuel gauge is awesome. No more guessing, see your exact air fuel ratio. Narrowband is OK for tuning idle and cruise, but doesn't really have the range for wide open.