DMS_ATX

PV = power valves? i'm not familiar with that acronym, can someone explain?

SB

iTrader: (1)

8795 is not the list #. It should start with an L.

What is cid , compression, rest if cam soecs, and top rpm you are going to run with this engine ?

Are these carbs new ? If not , did they tun fine before fir you and then started acting crappy ?

GETTINBYE

T|
Under load at a predetermined vacuum the power valve opens allowing more fuel to flow equating to 6-8 jet sizes. More load - less vacuum, 6.5 power valve will open at 6.5 psi manifold vaccum and so on.

Mark

compedgemarine

that number comes back as a lot of older dominator's that did not have screw in air bleeds but a pic of the top of your carb would help.

cheech

Here's some reading.
PV Info

flashgordon

12r-8795b
they are old carbs,,i am guessing from early 90's ,,when this boat was repower..
547's...10.3 to 1...fresh motors...plugs have always been too fat...


5600 is hardest i have pushed them....

thanks

flashgordon

old carbs,,,guess ourchased in earky 90s

thanks

speicher lane

with Holley, the casting numbers are raised (example is the pic supplied of the OP's 12R-8795B).. the model # should be stamped in somewhere on the body

What is the stamped # that is 180 degrees opposite your 12R # on top of the carb? ... that may be your model (list) #

fbc25el

Are there little brass tubes sticking out in side of the throttle bores ? Also the three little holes on top by the vent tubes is one of them blocked off ?

flashgordon

i dont know if this helps,,,stamped on top side of carb....