Update:

Bolted carb back on and put on a thicker carb base gasket. Double checked all plug wires, vac lines, and linkage.
Since I have a edelbrock performer intake, double checked intake bolts and since I don't have a choke on my intake, I have the choke locked open

The car runs like hell until it gets to about 160. I sprayed all areas of the intake and vacuum hoses with WD40 and no change. I sprayed some carb cleaner and I have a leak at the front of the carb on the passenger side at the base. Also at choppy idle if I spray carb cleaner on the secondaries, the idle smooths out ( but secondaries are closed.
Double checked my vac advance, distributor, and wires ( all fine )
Checked vaccum at carb and intake and both are fine

Now question #1 : Do I need an adapter for the intake with running a 74 quadrajet? Looking at my old intake, the ports for the primaries a d secondaries are closed off...the edelbrock is a Spread Bore.

Question #2 : I can understand the vac leak at the base...but what about the secondaries? If i just spray a little bit of carb cleaner, the idle is fine
Again, what am I missing?
Thanks in advance!