Hi:
You REALLY REALLY don't want to connect that fitting on the fan shroud to the breather,...
That simply pressurizes the crankcase which will blow out out of every seal you have on there and make a huge mess. That curved tube is for MFI-equipped cars, only.
Connect the large spigot on the breather cover to your oil tank using a 901.107.394.00 (as factory) and cap that curved tube on the cover.
One last thing; those dial-type fuel pressure regulators are just junk. They are restrictive as well as do a poor job of regulation. Get a Holley Low-Pressue FPR (0-5psi).