Vintage speed has adjustable main jets $39.99 a pair
i did not see any larger main jet then 60 

I'll go ahead and order the spacers. I'm going to pick up a infrared thermometer to get a reading on the temps around the fuel lines. I try to use non ethanol fuel when I can, but I won't be able to guarantee that I can find it on long trips. I'll check the jets, but I want to say they're something like 51s and 48s. Does anyone have any dealings with Charlie Price?

Also, could I expect to need similar sized jets? I'm in NC, so we're basically at sea level.

While it has not been clarified exactly what carburetors are being used, the Ford/Holley 3 bolt 2V carbs do use the conventional Holley jets which are available in most sizes up to ‘100’ through many different parts suppliers including Speedway, Jegs, and Summit.  The Stromberg carbs on the other hand use main jets that are specific to the Stromberg carbs and slightly more difficult to find when looking for specific sizes.

Lorena, Texas (South of Waco)

This is an afterthought, but would this Weiand manifold happen to be made for the '54 239 and 256 engines?  If so, intake gasket sealing would be very iffy with G heads.  Likely cause vacuum leak.

John - "The Hoosier Hurricane"

I will get the part number off of the intake when I get back to the house. The carbs are holley 94s. 1 1/16" venturi on the center and 1" on the secondary carbs

Intake is the Weiand FM 436

Jets were 56P and 50S

Would it be worthwhile to remove the 3 x 2 manifold and install a 2bbl or a 4bbl manifold just to check things out ?  If the 3 x 2 is designed for a 54 engine as stated above.


54 Victoria 312;  48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ

Before I sent the carburetors away to be rebuilt, I blocked off the outer carb ports on the intake and ran it on the center 2bbl. I did not experience any sort of pop or backfire on acceleration. I don't believe the intake is leaking. I referenced a head to head article that Mr. Eaton posted and the intake I have is listed as a "large port" I have swapped the jets in the carbs to the 59P and 67S. I'm going hunting for the correct fittings for rubber fuel hose tomorrow. Spacers are set to arrive on Friday. I'll put everything back together then and see how it goes.