it's sort of like changing an idle or WOT air-bleed jetting or emulsion jetting
control lean/vacuum leak, with a dial on the fly
not the best way to tune
I didn't do much research on it $393 for a Carb Cheater V2.0
Was not sure how much it cost (above), seems sort of vague on that
or how well it actually works, or what is required
you will need to buy an (Air Fuel Ratio) AFR gauge, to see if it even works
& O2 sensor installed in the head-pipe, need it in both sides would be best,
otherwise you're just reading one side of the engines exhaust
so it can cost a bit more, do it right some $200-$250 min. for less expensive one too
if you don't already have one, or have only 1 installed already
it appears to/comes with 1 O2 sensor
& do you have room under-hood for the carb spacer it requires ?
& usually by using an open spacer under the carb,
it will lean the system out all by itself
sometimes it would be a slight power boost, freefall fuel
& a better distribution & carb signal
especially on a dual plane intake manifold
before adding anything else,
& that just may be where he's getting the performance claims
it's worth a handful, to 20hp-ish on the right combo & tuned correctly
(
get a 1" open spacer or a 4 port tapered style, for a lot more,
for an open spacer for maybe $25+ for plastic to $60+ for a phenolic style,
cut down on heat to the carb too & get some longer studs & another gasket,
might be best/& a better value)
The cabled display deal, is at an extra cost (?) looks like
I'd be completely skeptical, it may be fine for a mild build
Is there any real world reviews of it ?
from any real world tuning professionals ?
But,
SORRY not meaning to rain on anyone's parade
you do what you want, it's your money, you seem to be a smart guy
so you decide, what's good for you
But,
seems it's just a gimmick, sort of snake oil, a band-aid, it can't do much
I can't see it really saving much on fuel either, if at all
it may work minimally on an "ill tuned carb"
or way over-carbed/fat or way too big, with weak booster signal
but, the carb still has the same jets or bleeds/emulsions in it
just another source for a controlled (?) 'lean leak', vacuum leak (?)
or band-aided for something with the wrong ignition timing,
aiding in a bad tune
constant fiddling with the thing
maybe the cats meow, on a mild/stock poorly tuned/or tired engine
any of Dave Vizard's books ($25 range)
on How to Super Tune a Holley Carburetor, would be a great investment too
I think he has one for the Webber/Edelbrock clone of a Carter or Quadrajett too
he has them on ignitions too
among other great writers & books
Good luck
I'd suggest, to learn to read plugs, it will help you more
for engine tuning & timing the engine actually needs
& yes you need to do more than just turn a nob & hook up a few hoses
& controller