49 8BA has no power

[Vanspeed]

Hi guys. Working on a ‘49 F-1 that was parked in the late 60’s. The truck starts on the first crank and idles very nicely. Upon driving it has hardly any power. It does not sputter or backfire, just no power. If the road starts to climb it is almost impossible to get up it. Truck has new gas tank, new lines, in-line filter before pump. Compression on cylinders is 100,90,90,90,100,100,90,85. I have tried two different carbs. It has a Petronix ignition in the stock disrtibutor. Owner did not want to deal with points any more. I feel like the distributor is not advancing or possibly timing is off? I would think timing off would give me some backfires or rough idle but it does not. Lack of fuel? Any suggestions appreciated.