The 250 dyno carb was set to factory specs at first and then only jetted it up by 2. Stock squirter.

Your stumble sounds bad. Like something else is wrong.

Tell us about timing setup.
At idle with or without vacuum line also. How about total timing at 3500 rpm without vacuum.


Inliner Member 1716
65 Chevelle Wagon and 41 Hudson Pickup
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