I think I am going to try to convert an old low rise Chrysler 273 Offenhauser dual quad intake manifold to fit my Magnum and run two 2-bbl throttle bodies on it. I plan to modify two OEM 50mm TBs which should provide an inexpensive way to substantially increase the cfm for the engine without buying a 4-bbl TB or 58mm TB. The manifold may also provide more even flow to each intake port. I have the OEM TB off my 360 and can pick up another one from a junkyard on the cheap. I will weld in injector bungs and convert to the vertical bolt pattern necessary for the Magnum head. I'll have to figure out the cooling hose location from the LA style to the Magnum. I will try to hook the accelerator and cruise control cable to the front TB along with the MAP sensor. I will also try to hook up the TV cable to the back TB along with the IAC motor and TPS sensor. I may try to use the conversion adapters for a 4-bbl to 2-bbl or make some type of attaching plate.
I am all ears to pros and cons including ideas for this set up.
I just purchased this used and unmodified intake to play with.