1986F150Six Posted September 28, 2021 Share Posted September 28, 2021 Gary and Bill Vose, what do you think of these? https://www.ebay.com/itm/274964852155?hash=item40052eadbb:g:ZyoAAMXQ0pNRxSbb Link to comment Share on other sites More sharing options...
Gary Lewis Posted September 28, 2021 Share Posted September 28, 2021 Interesting. I've not seen those before, but they should work fine. And the price is great - I wouldn't make 4 of those for $59. Bill? What are your thoughts? Link to comment Share on other sites More sharing options...
85lebaront2 Posted September 28, 2021 Share Posted September 28, 2021 Interesting. I've not seen those before, but they should work fine. And the price is great - I wouldn't make 4 of those for $59. Bill? What are your thoughts? If you need to go down in size it looks like a good option, it will also help low speed transition. European and some Asian carburetors have used varying size venturiis (Weber calls them chokes) to adjust for air flow based on cylinder volume, rpm etc. Biggest issue I used to see on large carburetors on smaller engines was the "throttle lag" when flooring it, primarily Carter and Rochester 4G series due to the mechanical secondaries. This was corrected by the Quadrajet with it's air valves and secondary metering rods. An interesting side note, one of the first "4 barrel" systems was the 1941-42 Buick Compound Carburetor, consisting of 2 Carter or Stromberg 2 barrels, front being the primary and rear the secondary. It wasn't done for performance as much as fuel economy (WWII gas rationing). Link to comment Share on other sites More sharing options...
Gary Lewis Posted September 28, 2021 Share Posted September 28, 2021 If you need to go down in size it looks like a good option, it will also help low speed transition. European and some Asian carburetors have used varying size venturiis (Weber calls them chokes) to adjust for air flow based on cylinder volume, rpm etc. Biggest issue I used to see on large carburetors on smaller engines was the "throttle lag" when flooring it, primarily Carter and Rochester 4G series due to the mechanical secondaries. This was corrected by the Quadrajet with it's air valves and secondary metering rods. An interesting side note, one of the first "4 barrel" systems was the 1941-42 Buick Compound Carburetor, consisting of 2 Carter or Stromberg 2 barrels, front being the primary and rear the secondary. It wasn't done for performance as much as fuel economy (WWII gas rationing). Thanks, Bill. And that's interesting about the early 4bbl systems. Link to comment Share on other sites More sharing options...
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