I have a 73 2056 2.0L That I drove home from WCR in Medford to Beaverton (a little over 200 miles). It drove great, and didn't even have any problem climbing the hills until about half way home. I would be in 5th gear cruising along around 75 and sometimes I would randomly start to slowly loose power. I downshifted down to 4th thinking my RPM was too low, as I am used to driving a 1.7L, and then shifted back up to 5th and didn't have any issues. It did that a couple times sporadically through the trip and one more time driving on the street while in 3rd gear, but other than that ran like a champ and no other issues. Anyone know what could be causing this? Small Vacuum leak?

Just got it home and in the garage

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Could you have a fuel filter that is just about plugged up ?

Ditto : That's where I'd start.

Fuel tank sock screen after the filter.