Hello all- It has been quite a while since I have posted in the forums. I have an 85 GMC Jimmy with the 305 and the California emmissions package. As soon as gas prices went up, I stopped driving it. My daily driver, a 1996 S-10 is starting to give me trouble. So far this year I have replaced the water pump, fuel pump, ac compressor and now the ABS unit has malfunctioned. The truck does horribly in the rain and snow. I am thinking of selling it and keeping the Jimmy, but if I do, I will have to do something about the gas mileage. On the highway the Jimmy is only getting about 13-14 mpg. This seems way too low for a 305. I am wondering if this could be due to a malfunction in the computer controls for the carb. I am thinking of gutting the current system and replacing the carb and distributor. The factory quadrajet that is on the engine now is about 800cfm and I was thinking about something more like a 500. Any thoughts about which carb and distributor to buy? What kind of gas mileage increase should I expect? I am working my way through college and I don't have a lot of cash, so I really need to get rid of one of these vehicles. Thanks!