Throttle(s) before or after plenum chamber?

[DJohn77284 at aol.com]

Egil

Are you planning on using the original Lucas PI injection or are you going to
move away from this?

I am wondering because I thought the setup of the PI system was very
dependant on engine vacuum and going to a plenum chamber might alter the
fuelling characteristics.

Also, regarding the inlet length, I think you have to take into account the
total length, i.e. from the valve through to the bellmouth opening.

Dave