You can get some pretty neat 4 barrel throttle bodies with the injectors built in. They combine the fuel rails and everything and a pair of them would hide nicely under one of those Oval Cobra aircleaners. The advantage of this setup would be that you wouldn't need to modify the TP manifold, the whole thing would be bolt on.
Here's a link to a site down under that has the throttle bodies but they are probably available in the US also. Look up the V8 4 barrel setup here:
EFI Hardware
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