Just started snowing a bit, about half an inch on the ground..i started the car, it started fine, and i let it warm up to normal operating temperature. Took it for a drive, and when i push the accelator down any more than just feathering it, the engine sounds like its struggling and its trying to get higher in the RPMs. Its does every 4 seconds then it goes back to struggling. I looked around google, and i read somewhere about fuel lines freezing up. I did have just 1/4 of a tank of gas, but i filled up right away and i still have engine struggle. Could it be the cold? Ive driven it with no problem when it was below freezing b4, but this is my first snowstorm with the 69 nova. Its got a 350 in it with a holley double pumper.