Posted By: RR6BBL1969
Hesitation in my 340 upon take-off. Update - 10/12/13 01:42 PM
I have a '69 340 Swinger with an automatic, P/S, PDB, and A/C. I have not been in the engine since I have owned it but I believe it is stock from listening to it run, and I will say it is one of the strongest 340's I have ever driven. A problem that I have always had is a "stumble" when taking off at a complete stop, i.e. stoplight and normal acceleration. The carburetor (correct Carter AVS) has been rebuilt by one of the best in the country. It was rebuilt, all parts replated, and mounted for a test run. It still had a stumble so I took it off again and had an old friend of mine go through it which he did and found no problems. He was the "tune-up and carburetor specialist" at the Plymouth dealership where he worked for many years through the 60's and 70's. I put it back on and still a stumble. I have put fresh plugs in it, always run premium gas (ha), checked my timing (stock), good plug wires, clean air filter, and so on. Still a stumble. Any suggestions?? What would you guys suggest for my timing advance? Could I have a vacuum (intake) leak?
Thanks
Thanks