Intake Manifold Flow #'s
I would like to note that the CH4B has two distinct advantage over a new RPM... Hood clearance and price. The RPm is the best dual plane manifold on the market for the RB. However, the CH4B is shorter. I still had to use a drop base air cleaner and a 2 5/8" filter to provide adequate hood clearance in my barracuda. An RPM would not fit without cutting or new hood. The CH4B can also be found on EBay for under $100. Got mine for $75.
There is a 3rd advantage for some, the CH4B has a chrysler part number and is allowed in some nostalgia racing classes.
It is by no means better than the RPM, or the best available. However it is a strong performing dual plane that has tested better than the performer and other dual planes, coming 2nd to the RPM in peak power.
CH4B top vs Performer bottom. Look at the runner differences.
I would like to note that the CH4B has two distinct advantage over a new RPM... Hood clearance and price. The RPm is the best dual plane manifold on the market for the RB. However, the CH4B is shorter. I still had to use a drop base air cleaner and a 2 5/8" filter to provide adequate hood clearance in my barracuda. An RPM would not fit without cutting or new hood. The CH4B can also be found on EBay for under $100. Got mine for $75.
There is a 3rd advantage for some, the CH4B has a chrysler part number and is allowed in some nostalgia racing classes.
It is by no means better than the RPM, or the best available. However it is a strong performing dual plane that has tested better than the performer and other dual planes, coming 2nd to the RPM in peak power.
CH4B top vs Performer bottom. Look at the runner differences.
