1974 Vette with 8.5:1 L48 engine. 95,000 miles. Cant even turn the tires with the brake on! Just dogs out bad until it gets rolling, then it will go. Runs great on the highway and will do 130 no problem. I've tried all the easy stuff, points, cap, rotor, wires, plugs and I rebuilt the quadrejet last night. No Help! It does take some oil and smokes a bit when first started and under hard acceleration. Also, I have to have the timing set to about 15-20 degrees btc to get the thing to run halfway descent. Is it time for a complete rebuild? Am I missing something? Did a 74 L48 ever have any power? I've only had the car since spring and really didn't drive it that much this summer, maybe 1500 miles. I checked the oil once this summer and it was fine. Checked it again last night and it was 1.5 quarts low!