OK, I'm baffled - High RPM break-up or miss
06-17-2006, 11:53 AM
#62
Instructor
Member Since: Jun 2006
Posts: 196
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I bought my C2 about a month ago, it has a 355 CI Small Block, I was having a similar problem along with a miss at idle. I went through the fuel system and then the ignition system. My car does not have points in it they put in the electonic system. The problem I found was the coil wire into the distributor was cracked almost in two. I fixed it and it runs good now. Another issue I had with the car was one of the mufflers had fallen apart inside and when I would throttle the car up the stuff in the muffler would build up and the car had no power. I put on Flow Masters # 50 series and it purrs now. Hope this helps.
64 muscl
64 muscl
11-11-2016, 11:56 PM
#63
Intermediate
Hey Barry,
Have you given any thought to your coil? I had a similar problem last year with a miss and (at times) a backfire at RPM's over 4,000 (using heavy or wide-open-throttle). Below that RPM (and using normal throttle) it ran strong, idled well, etc. I went the route of rebuilding my carb's, replacing the fuel pump, reworked the distributor, replace spark plugs & wires, etc. After a few weeks of pulling my hair out someone said to change the coil. I did and it was an immediate fix.
Roy
Have you given any thought to your coil? I had a similar problem last year with a miss and (at times) a backfire at RPM's over 4,000 (using heavy or wide-open-throttle). Below that RPM (and using normal throttle) it ran strong, idled well, etc. I went the route of rebuilding my carb's, replacing the fuel pump, reworked the distributor, replace spark plugs & wires, etc. After a few weeks of pulling my hair out someone said to change the coil. I did and it was an immediate fix.
Roy
Thanks again!!
11-12-2016, 12:10 AM
#64
Le Mans Master
Glad Roy helped you out, but he doesn't post here anymore.
You will find him in the C6 forum now.
It's good to search out information in the old threads, but posting to a thread over 10 years old is usually not productive.
You will find him in the C6 forum now.
It's good to search out information in the old threads, but posting to a thread over 10 years old is usually not productive.
11-12-2016, 12:07 PM
#65
Burning Brakes
Way back in the 70's when I had my original 65 I had a high speed, what i'd call stumble, only in 3rd and 4th as I remember. I put a holley electric fuel pump back near the tank and never had that problem again. I also hid a switch to turn it off as a security device.
