I've got a 68 Road Runner with a NOM 70 440HP with about 3K on a rebuild done by the last owner. It's a fairly stock engine but it was a 383 AC car, so the last owner put a Classic Air system on it.
Since the move to California from Virginia a year ago, the car ran fairly hot, so I got the radiator re-cored, put a new Flowkooler water pump, Tony's parts clutch fan, and Flowkooler/Robertshaw 180 thermostat. So, now it never overheats and will run happily in the 180 to 200 range on aftermarket gauge.
About a month ago we were driving through an up and down hilly neighborhood and going down a hill it just died. Would not start and I had to get it towed back home. I noticed that PCV line to the carb was not tight, so I tightened it and it's been out on a few rides with no problem.
But yesterday we decided to turn on the Classic Air system that I hadn't run since VA and it got cold and ran for about 15 minutes. We stopped for about 15 minutes, started it back up and went another 10 miles and it started to heat up and seemed to shudder a little. So I turned off AC and it seemed happier. About 5 miles from house I headed up one of the many large hills near the mountains and got on it a little in 3rd gear. As I started coming down the other side, it just sounded like a dying lawnmower or something and died. I coasted into a parking lot and it wouldn't start. So, I waited for 30 minutes and it started but would die If I didn't keep the revs up, but made it home.
One thing I noticed is the Alternator was about halfway in the charge part of the gauge.
So it seems like I have two problems. Alternator/Voltage regulator and Fuel problem.
Do I need a higher amp alternator? I think there is a 65 on there now.
Should I run a vapor return line? EFI?
Thanks!
Since the move to California from Virginia a year ago, the car ran fairly hot, so I got the radiator re-cored, put a new Flowkooler water pump, Tony's parts clutch fan, and Flowkooler/Robertshaw 180 thermostat. So, now it never overheats and will run happily in the 180 to 200 range on aftermarket gauge.
About a month ago we were driving through an up and down hilly neighborhood and going down a hill it just died. Would not start and I had to get it towed back home. I noticed that PCV line to the carb was not tight, so I tightened it and it's been out on a few rides with no problem.
But yesterday we decided to turn on the Classic Air system that I hadn't run since VA and it got cold and ran for about 15 minutes. We stopped for about 15 minutes, started it back up and went another 10 miles and it started to heat up and seemed to shudder a little. So I turned off AC and it seemed happier. About 5 miles from house I headed up one of the many large hills near the mountains and got on it a little in 3rd gear. As I started coming down the other side, it just sounded like a dying lawnmower or something and died. I coasted into a parking lot and it wouldn't start. So, I waited for 30 minutes and it started but would die If I didn't keep the revs up, but made it home.
One thing I noticed is the Alternator was about halfway in the charge part of the gauge.
So it seems like I have two problems. Alternator/Voltage regulator and Fuel problem.
Do I need a higher amp alternator? I think there is a 65 on there now.
Should I run a vapor return line? EFI?
Thanks!
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