We have produced our own range of cast alloy intake manifolds for the many SU applications covering the A-Series engine MINI. The single SU manifolds are developed to give maximum airflow and gas speed, yet fit all engines even if the standard air cleaner set-up is used. It has 1/2"pipe thru for heating with water and the as-cast finish provides maximum fuel atomization.
C-AHT770 takes 1.5" AND 1.75" carbs, HS or HIF type: HS4, HIF4, HIF38, HS6, HIF6, and HIF44. Medium size port runners suit all small bore engines, and large bore engines up to fast road spec(dependent on head intake port size).
Use studs C-22A152 x 4.