Hi Warnberg,

When I do the 'nose high check', the engine does pick up in rpm but certainly does not splutter or start to lean cut.

I've double checked the clunk and the tubing and all looks OK, as per the advice given above.

I'm contemplating incorporating a header tank as a possible option?? Alternatively, I might mount the engine on its side (90 degrees from its present position), in order to place the carb more on a level with the tank??

Could I be jumping up the wrong tree? Is this an engine problem and not a fuel feed problem???

Any thoughts on the above???