[Hell on Wheels]

Hey all,
I need some help with the 289 I just rebuilt. Runs great setting in garage, but took it out and got it up to temp and when i put some load on it, the engine starts missing or sputtering. Acts like it is a carb. problem. I have learned somethings the hard way, but car ran fine before i swapped the cam. Have Comp cam M 270 now. I have heard of the coil getting too hot and something like this happening. I have another coil i will try today. Any ideas? Acts like it wants gas but can run it in my shop under no load and all is fine. Happens when car is about 190 degrees. New motor so not too worried about temp just yet. Thanks

[Hell on Wheels]

Don't know exactly why but I switched to another coil I had this fixed the problem. Ran the car around town and highway for about 3-4 hrs and no problems. I like the Comp cam M270 for a tough sounding and frisky ride around town. The M 280 was just a little much for around town..