05-28-2006, 02:11 AM
Went to a cruise-in tonight about 30 minutes from the house. This has been the first hot day since I got the car. By the time I got there driving through the area slow, the temp went up from 160 to 190. No big deal. But if the engine temp hits 190 or above, the engine acts like it floods or loads up. The car runs perfect until I hit this temp. I'm running a late 60's 350, sounds like a stout cam, the fuel line is routed at least 6" from any part of the engine. The carb is an Edelbrock 750 which I would have put a 650 on this car. I rebuilt the carb and installed soft metering rod springs, that cleared up the constistant "loading up" problem I was having before. The car was flooding any time I sat at an idle in gear, someone explained to me that with a big cam idling in gear the engine loses vacuum to hold the metering rods in the primaries therefore dumping fuel into the intake. The problem seemed to be resolved. But it's acting the same now that it is 80 to 90 degrees out and the engine is running a little over 190. I can't seem to figure out how the temp is so sensitive to this problem. 190 isn't too hot to be running a car. I thought about a carb spacer or a smaller carb, but I don't want to just throw money at the car hoping that I luckily find the problem.