340 Upper Rad Hose Too Short

If you still need some help, PM "lemondana" on the board here. He really knows hoses and will know forsure your correct hose. He even has some NOS hoses he'll sell you for fair prices. He's helped me on my 340 get the right belts/hoses. He said alot of people run the wrong upper on their cars, same issue you had. His name is Myron.