First: Stage Intakes don't fit production engines.
The reason to utilize an EGT meter is diving more deeply into fuel and carb tuning. Not giving it all away just yet but The Idea is to use it in conjunction with a Wideband O2 and be able to safely (lean out) the AFR and raise the EGT for more POWER. Heat drives the turbine.
Okay. I've seen sheet metal intake manifolds before (2x4, 1x4) so I know they can be had, but for how much is a mystery.
Otherwise your limited to 4.1 production 4bbl intake, Weiand Excellerator AKA Weiand Smokey Yunick without air gap, The Original Weiand/Smokey Yunick intake (if you can find one), Kenne-Bell, And what ever cool intake manifold you can invent.
"And If I forgot about any single plane intakes that fit later high port heads let us all know"
You might even be able to get just part of an After-market company's Twin kit, "ESP for example" You would have half the fabrication already finished now, Headers and downpipes for twins probably turbo's too with 4 bolt turbine housings so you could use anything. Otherwise that is going to be all custom Fabrication work.
The fuel system will have to be stepped up big time. That goes with the electronics you asked about so I'm mentioning it. A very decent fuel electric pump and 3/8 or 1/2 supply line or -6AN -8AN and probably a high flow pickup. Need a rising rate boost referenced fuel pressure regulator.
Carb hat is an important decision. NEVER use a Turbonetics carb hat. Spectre has a good unit for a good price that will work great with twins. You can use a single inlet carb hat too and "Y" the charge piping leading too it.
Consider a nitrous plate to help spool two turbos AND give more intake volume.
You can still use Vacuum power brakes, I do on mine. Also consider an electronic boost controller to help keep the boost under control with the twins.
