Genuine mini Spares inlet manifold dyno tested and designed for our Stage one kit
C-STN17. The single SU manifolds is 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 through it for heating with water and the as-cast finish provides maximum fuel atomization.
C-AHT770 takes 1.5" AND 1.75"carbs. Medium size port runners suit all small bore engines, and large bore engines up to fast road spec (dependent on head intake port size).
The plug 5/8UNF (supplied with manifold) should be thread locked into the manifold, with care taken not to wind all the way down.
Sales are 900-1000 per year as all tuners use this manifold so it must be good.
If you are using a thick carb spacer use the CHS2515 studs which are slightly longer.