1969 C10 350 engine is bogging at freeway speeds only

[MarcellJ]

Hi All,

This is my first post, as my account was just validated. I've already read many post within this forum about bogging though. But I still decided to ask.

I have a 350 engine with Edelbrock 1406 electric choke carb, and it recently started bogging at freeway speeds (55-60+ mph) only. It starts on the first key turn, and drives fine street speeds (30mph).

I recently did the following:

1) Changed the inline fuel filter
2) Bought new points, set them correctly, and installed
3) Bought a new cap and rotor
4) Bought new spark plugs and wires
5) Checked that the fuel pump is working correctly
6) Checked coil and wire connections are getting spark
7) I have a MSD 5 box, and it is still working

I've owned it for about 6 months, but this recently happened.

One problem that I've had since I owned it is the battery will die if I leave the cables connected all night. So there is a short somewhere.

It still boggs after doing actions 1-7 that I listed. I'm thinking about rebuilding the carb, as many have posted 1406 carb issues.

Any ideas?