Dual Plane vs Single Plane Manifold with TBI
Sounds like you are running a 318. Here is the perfect TBI Dual Plane intake manifold mopar used on their '89 to '91 318 TBI engines for their 318s.
Factory plenum is dropped on this one. Ma Mopar built this one for TBI.
Can easily redrill and tap threads into the mounting flange if they don't line up with your new TBI setup.
They are a bit of a mid rise manifold and have the port runner sizes to match the 318 heads. Port Matching the heads to this manifold is recommended, although you can go without. Me I would port match it, easy enough to do.
Not sure if they make a 4bbl TBI, some more options:
I use these TBI mid rise manifolds with the 4 bbl adapters for the 318s because the port runners are the right size for the 318 heads. Running the 318 TBI intake with a 4bbl carb in my 318 truck right now. (LD4B intakes are becoming few and far between and expensive for the 4 bbl 318 carb setups)
Sounds like you are running a 318. Here is the perfect TBI Dual Plane intake manifold mopar used on their '89 to '91 318 TBI engines for their 318s.
Factory plenum is dropped on this one. Ma Mopar built this one for TBI.
Can easily redrill and tap threads into the mounting flange if they don't line up with your new TBI setup.
They are a bit of a mid rise manifold and have the port runner sizes to match the 318 heads. Port Matching the heads to this manifold is recommended, although you can go without. Me I would port match it, easy enough to do.
Not sure if they make a 4bbl TBI, some more options:
I use these TBI mid rise manifolds with the 4 bbl adapters for the 318s because the port runners are the right size for the 318 heads. Running the 318 TBI intake with a 4bbl carb in my 318 truck right now. (LD4B intakes are becoming few and far between and expensive for the 4 bbl 318 carb setups)