i was wondering how one would modify the crankcase ventilation system so that it doesn't suck oil into the carburetor, as it appears mine does. I know it's not supposed to do that, but the pcv valve is free, and the foam filter thing looks good, i don't know what else it could be. on a slightly unrelated note, is there supposed to be a small hole on the bottom of a holley 1920 that opens directly to the throat?

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-Christopher

"Gray Ghost"-1970 Dart.
"Frederick II"-1994 Geo Metro.

Sounds like you have other underlying problems. Have you adjusted the valves and done a compression test? I would have to see the "hole" but it is most likly ok.
Frank

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Scrapple: Because a mind is a terrible thing to waste.
73 Duster - Race Car
66 Dart Wagon - DD
178" FED
82 D150
All Slant powered

i have not done a valve adjustment yet, but when i got the car four months ago the compression was 118, 119, 120, 119, 118, 117, front to back. i just replaced the manifold gasket, i need to adjust the carb and timing proper, so i can get the engine slow enough to do the valves, unfortunately, i'm not good at that. i'm kind of a newb, last time i tried it got worse.

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-Christopher

"Gray Ghost"-1970 Dart.
"Frederick II"-1994 Geo Metro.

Double ck your pvc valve by placing a small sheet of paper on it and rev the engine. It will show you if it working properly............I chased this problem for two weeks on a new pvc valve. It was defective. I couldn't imagine that it could be bad.
The paper should stick If it working properly.
Good luck with it
MaX

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1966 barracuda 360
1964 signet conv. 170 turbo
Bonneville or Bust 2012

it appears the pcv valve was bad after all , new one in, i think i'll replace some of the hoses on the breather cap, as they look rather cracked and original. i'll see how it goes, i got the engine settled down smoother, has some extra vibration still, hopefully that will go away when i set the timing proper

_________________
-Christopher

"Gray Ghost"-1970 Dart.
"Frederick II"-1994 Geo Metro.

Good deal, PVC valves are inexpensive.............and your idea to ck vacuum leaks is a very, very good idea................best to you

MaX

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1966 barracuda 360
1964 signet conv. 170 turbo
Bonneville or Bust 2012

regarding the hole in the 1920 is it on the driverside in the middle somewhat . close to the idle adjustment screw ?????? or is it right under in the corner of the of the float . actually under where accelerater pump is it at ? mine has the same hole and my second holley had both

the hole is on the driver's side angled down towards the throat of the carb, near the bottom; so far as i can tell it's manufactured in, but it's allowing unfiltered air to the engine, that's why i'm concerned, it's about 3/32" diameter

_________________
-Christopher

"Gray Ghost"-1970 Dart.
"Frederick II"-1994 Geo Metro.

try plugging it with clay or something simular............see what happens. could be good or could be bad .........only way to find out for sure huh?
best regards
MaX

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1966 barracuda 360
1964 signet conv. 170 turbo
Bonneville or Bust 2012