M1 Intake Manifold SBM

Hey guys! I am having a real challenging time getting my 340 with an M1 single plane intake and a Holley 4150 to fit under my hood on my 1970 Roadrunner with an Air grabber hood. I have a few questions for you guys regarding the M1.

1. Is the M1 that much taller than an Eddy Performer or Air Gap?

2. On the M1 it might be necessary to add a vacuum line but where to drill? Is there a good place to add a port or no?

3. Posted on the Bbody site. Thinking of disconnecting the PCV to the manifold due to current port limitations. With a check valve on does the lack of vacuum prevent proper ventilation ? Is there an easy was to passively port the PCV?

Thanks yall!