1988 Quadrajet and gasket issues

jimmbo

Supreme Mariner
Joined
May 24, 2004
Messages
14,617
It will certainly reduce the amount of Air that the Larger Primaries of the Squarebore could flow, and that could certainly screw up the calibration of the opening of the Secondaries.
The Mercruiser Adapter I showed in post #11, did allow the flow from the Primaries to access the Secondary Side, and was a better adapter, though still not a good as an Intake Manifold that was engineered for both Squarebore and Spreadbore Carbs
There are a few aftermarket adapters that better than the POS Edelbrock adapter. Here is one, others may have the divider the entire height of the adapter, or may omit it entirely
 

Attachments

  • Carb-Adapter-Holley-to-Quadrajet-Q-Jet-Spread-Bore.jpg
    Carb-Adapter-Holley-to-Quadrajet-Q-Jet-Spread-Bore.jpg
    23.4 KB · Views: 0

Lou C

Supreme Mariner
Joined
Nov 10, 2002
Messages
14,258
I have one like that as well except no divider
 
Top