Thread: 3.5 V8 with 350 Holley starting issue

... Also i believe that there is a baffle plate that is sold by Holley, for the float chamber ... For when it is used in hill climbs, it stops the float from dropping when the bowl is on a angle and causing the carb to flood

Originally Posted by mike 90 RR

... Also i believe that there is a baffle plate that is sold by Holley, for the float chamber ... For when it is used in hill climbs, it stops the float from dropping when the bowl is on a angle and causing the carb to flood

Fitting a vent whistle, which sticks out into the fuel bowl and then some fuel line, on the vent pipe, the one the fuel was leaking out the top of, cut on an angle will stop the fuel spilling from the bowl into the big hole, when on big angles and stop the flooding, Holleys are a complete ***** of a thing in the bush without this, fine on moderate inclines, but painful on the really steep stuff

I read this thing, was going to suggest aerostart, to find if it wasn't spark issue, lucky I read the lot

Originally Posted by rovercare

was going to suggest aerostart,

still chuckling

Originally Posted by mike 90 RR

still chuckling

I'm not getting the funny

Originally Posted by mike 90 RR

... Also i believe that there is a baffle plate that is sold by Holley, for the float chamber ... For when it is used in hill climbs, it stops the float from dropping when the bowl is on a angle and causing the carb to flood

When i first put a 350 on my rangie back in 95 the guy at holley performance in Melbourne suggested this baffle to me along with the plastic float for lpg use, i didnt fit one as i was using lpg offroad mainly.

This relates to a 390 Holley, vacuum secondary, automatic choke. It may be of help to you.

Setting up...Basic jet setting for standard specification Rover V8....
Primary main jets : 52
Secondary main jet (when secondary metering block is fitted) : 55
Accelerator pump discharge nozzle : 25
Accelerator pump cam (check in positions 1 & 2) : Red
Power valve : 6.5
Secondary diaphragm spring (medium) : standard, plain coloured

Float levels : Both must be set to factory specification...ie when the externally adjustable fuel bowls having fuel dribble out the sight plug holes when the car is rocked side to side and parked on level ground. Float levels MUST be set before tuning is carried out. If no fuel dribbles out, the float level needs to be raised. If fuel runs out, then the float level is too high and needs to be lowered. In both cases undo the adjustment screw on the top and at the front of each fuel bowl and turn the adjustment nut clockwise to raise the fuel level and anti-clockwise to lower it. It is critical that the float levels are exactly right!!

Idle adjustment screw : Turn the primary idle adjustment screw so that the primary barrels are open no more than 1/2 a turn from the fully closed position. If the engine runs too slow like this, remove the carburettor and adjust the secondary butterflies so that they are admitting more air. This might have to be done a few times to get it right, but with the engine idling at the requred rpm and the primary barrels closed as much as they reasonably can be, the primary butterflies will sweep past the progression slots to the maximum extent possible, resulting in optimum acceleration without hesitation.

Once the idle adjustment has been finalised, the accelerator pump needs to be adjusted and that is the next part.

If this is of use, please let me know and I'll post more instructions.

Ron.

Best place for Holley bits, cheap, great service

Hume Performance

RoverP6B , the difference between a Vac progressive 390 and a 350 holley ,hes got ,is like comparing a CD strommy with a SU , they are nothing like each other !!!