[5Tractorguy]

Reviving this thread since I've done some more work to the '61 and had some questions.

I recently installed a like new take off Stromberg WW carburetor that was removed in the 60's. It was rebuilt with a new kit, correct size .057 main jets and #67 power by-pass jet for the 351.

It's a 23-133A. The only noticeable difference is the throttle plate has 2 small vacuum holes that run up into the vacuum port on the backside. The port on my truck is plugged so I'd assume those holes don't make a difference once I plugged the port.

The truck seems to hold a bit better on hills and accelerates up a hill a bit better.

My very rough estimated MPG is about 4.7+/-. Sound about right for a 351?

I was thinking of trying a set of .056 jets just for kicks since it almost seems like it might be running a bit rich.
For curiosity I swapped in the .055's that came out of the WW and it was struggling starting out so I think the 56's may starve it also.

Any thoughts appreciated. I should probably just run it, but I'm a bit finicky when it comes to this stuff.