Our custom sheetmetal intake manifold utilizes the stock lower unit so you can use all the original fuel components or any aftermarket components which bolt on like OEM parts.  This plenum is 2L in volume which allows it to support a lot of power.  Its designed to be used with the 82.5-90mm Ross Machine Racing throttle body.  This particular throttle body comes with its own throttle cable bracket.  On the back of the intake manifold, there are 4 1/8" NPT, 1 1/4" NPT and 1 3/8" NPT welded in place to operate all your systems including a IACV and brake booster.  For IAT, I can use 1/4-3/8" screw in bungs or the stock IAT flange.  This product requires you to send in a lower unit, i do not stock them.