95 5.8L MAF XLT, Hedman Shorties/MF SS Y & Muff, E4OD, Man hubs, KYB Quads, 31x10.5x15, 311K miles
BTW that manifold on the Vette I know about that as it came many years after my idea in College. My Senior Paper in 79/80 was going to be about a "Variable Runner Intake Manifold", but I stopped because of Political problems. There is the Variable Venturi Carburetor (Ford) way back when also. It got Really Deep the whole Idea/Concept. Just some Fun Facts from my past!!! Believe it or Not!!!If you're going to have to monkey with the programming for the injectors (provided you plan on exceeding the 260 hp mark), might as well go ahead and upgrade the ECM to something like PiMPXS..then you can run whatever cam you want within reason and keep the SD
Also, this particular use of a vacuum pump would be "experimental" i suppose, but they are used quite a bit in forced induction applications, plumbed into a reservoir then all the vacuum operated goodies like HVAC and Power brakes run off of it.
The first Gen Z-r1 corvettes from the 90's had a dual runner setup on their LT-5 DOHC engines, and when you put the engine in "Full" performance mode, this activated a small 12v vacuum pump that would open the secondaries under full throttle giving you all 405hp. I had one of these and that pump in particular is what made me think of the whole "auxillary vacuum pump" idea. 405 HP out of a naturally aspirated 350 engine in the early 90's wasn't too shabby.