does anyone know where i can get some small bore threaded brass take off to put into silicone hose for vacuum pipe. i want something like a threaded tyre valve to fit on the connector pipes between carbs & manifold i dont want to weld take offs to the manifold as its ally & powder coated thanks geordielad

Hi,

Ive used mig welding tips on mine, drill and tap manifold, drill out tips if required, works great.

Andy

great idea thanks what thread are the mig tips?

Ditto, you need a 6mm tap to suit the mig tips.

Car Builder Solutions do a bolt in self sealing take off in a variety of sizes.

proper manifold connector spuds from a LPG kit suppliers £1.20 each M6 thread.

http://autogas-lpg.co.uk/spare-parts/86-rail-valtek-parts.html