Sir,
1. We had an air leak problem which we corrected. when we had the problem the engine would start, sore to a high rpm then fizzle out and stop within 2 to 3 sec
2. We are using a taper bore with dia 45 at start to 40 at the end. the link
http://www.jenvey.co.uk/products2/in...-inj-sfxx-45-0
(without injector)
Team Gearshifters