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Old 12-04-2012, 03:42 PM
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830 cfm holley

Have an old 830 double pumper that I thought I might rework and put on my 468.

pocket ported 820 heads, 2.19 / 1.88
lunati 60213 hydraulic roller 241/249 @50 .625/.625
cr 9.95

has had choke tower taken off ( I think ) so no number on top
only body numbers are on the side P32 R5
Base 48354
butterfly 172, 7/64 hole in front blades
metering plates 9108
squirters 31
power valves both blocked
pumps are 50 front and back

this is how I got it, is it worth while trying to set it up for my engine, was told to put a 1/34 base on it to increase flow and so the secondaries come in slower as these open really fast


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Old 12-04-2012, 06:34 PM
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no power valves on the street might be hard to tune.
when the car is running,dyno the beast and tune it there. 830 is a decent size for a street car.consider using an open plenum intake for more flow
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