Hi Paul,
I have just finished the intake manifold for the Berkut using carbi.
As you know I don't like fuel injection because of the fire risk. I
have got 18" inches in intake length runners into the plenum. There
was some discussion that using the Revmaster or other type carbi that
the flooding and shut down was a problem. I have not had this problem
on two aircraft using this carbi as I shut down by the fuel shut off
not the mags. If you have leaning you should do this not the mags.
Always shut down by the fuel shut off. There has been a lot off Yahoo
a about how much air an engine will use. At the end of the day it will
use a fuel mixture to make the HP rich or lean. Piston engine or Rotary.
I also had the Revmaster and the Mikuni flow tested for the non
believers.

Paul I will stay with the carbi as I have had so much success with
these. And after having a fire in air and I got back down will stay
with the same system. I know you are working on a new fuel system and
will stay open minded.
I did test the revmaster or Edelbrock on two aircraft. I can only
report as I found them in in flight and many other test that I
performed.

I can only compare it with the Jabiru set up using the Bing carb and
the Revmaster. There are claims on the Areocarb site that they achieve
great HP increases. They also use a slide throttle design carbi.
What i know from my testing is that the Revmaster or Edelbrock 42 mm
throat carbi will supply 130 hp each and more.
Any way I am still with the carbi as I have flown then and had a fire
in the engine and will not go High pressure fuel. In my case it was
not fuel but oil filter seal that failed. the fire way very bad as it
also came into the cockpit. I was running a gravity feed Revmaster and
managed to land without any fuel fire. If it had been HP injection I
would not be here.
Regard Don

I am sure it will work great. Send us some pictures if you get
a chance. I have no problem with carbs. We got over 250 HP
out of a P-port 13B and about 260 HP out of a P-port RX8
motor running on dual 48 MM Webers. You just can't lean
the Weber however. Webers are over a thousand U.S. and Mikuni
48's are about $450 U.S. each. I would like to see a picture
of your leaning base for the dual carbs when you get it
done.

I am doing the 555 EFI because it is cheap. People
have a lot of these parts lying around that came with their
engines.

Here is a picture of my $7 Wright Brothers style constant dribble EFI
back up system :) Needs gravity feed and a couple of small lines going
into the intake manifold. I found it at Home Depot.

BTW if you need a free crew taking the boat north Robin and I will fly
over and help. We can fly home from Singapore. 8 on and 16 off.
I have over 3000 miles of open ocean sailing experience.
Better have a few AK47s and lots of ammo on board for the pirates :)
Maybe a bit of armor plate on the bridge :)

Paul Lamar