Help please getting a new engine to start

[bmcecosse]

Yes - but it's not a neat fit to the carb inlet - and it's not clear if there are maybe screws in the holes?? Hope not!

[Boris64]

George

I spent far too long recently trying to understand the what and why of carbs and came across this piece of research on ram pipes.

I can't speak for the validity of the testing but there is a logic in the section profiles.

The soft radius seems to be key.

Pete[frame][/frame]

[bmcecosse]

Of course it is - to eliminate the vena contracta..... Best done on the carb inlet I reckon - but yours will be fine as long as it's not blocking the vents.....