What dual plane will allow no scoop?

Muswagon said
Awesome info guys. May come down to availability. The LD340 may take awhile to get, he is a Mopar hoarder which we have alot of up here, so he lets stuff go slowly. Anyway, not much in stock these days, this one is available at a couple of places, will this one work for a mid 70's truck 360 engine? Performer RPM Small Block Chrysler Intake Manifold

I know it is one of the ones mentioned, but I want to be absolutely sure it will work before dumping this kind of money

The Performer RPM is mostly a later model version of an LD340, so it should work. If the truck engine was a 4 barrel motor, it would have had a factory dual plane intake...but would have been the spreadbore version. LD340 intakes are going for stupid money nowadays, IF and WHEN they come up for sale. Play dumb and offer the dude $250 for it and see if he will sell it.