This is my 37th year of teaching middle school students...still going strong. Found my '59 Bugeye in Iowa last fall and trailered it home. Great weather in the Upstate of South Carolina today....have had it out. Waiting on spring to arrive. Is a slight backfire or popping normal when I let off the accelerator? Could it be burning too lean? Gads it's done this ever since I've owned it.