Hello, I have a 1886 chryles 5th ave. Runs good, almost grate. Thats why I bought it. However it seens to misfire, (at least I think its a misfire) it sounds like a muzzed pop from under the hood. It only happens when I apply pressure to the accelerator and when I release the accelerator.
i have checked for vacum leak, have not found none. This is only issue I have with the car. Please help. Thanks