Quote:
Originally Posted by DanEC
Chas - one more question. Anything particular you did to set the idle speed? I pretty much set it by the front carb and then adjusted the second carb until the idle started to increase. Then I backed off the second carb just enough to bring the idle back to where I started.
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You can if you know that the rear is not already
contributing to idle speed.
I took all the rear out of the idle (backed screw off the arm) then set front only and just added enough rear to touch the arm. But I have a single plane plenum-feeds all cylinders. With your dual plane you may have to set each carb the same because you're feeding half the cylinders at a time with front and rear primaries.
Can't help on PV's-I run 3.5's on 7 1/2" vac.
Go by the formula off your true vacuum reading-like 1 1/2 numbers lower than your vac.?? I forgot the formula but it will get you close.