You know I have the same issues. My car has plenty cooling capacity but the airflow was lacking. I have a seven blade 18" flex fan but I was lacking a shroud. Yesterday my friend, retired sheetmetal worker, made me a beautiful mirror stainless shroud. It's not installed yet but I'll finish it off today. I think it'll be just the right thing. Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies ===================================================================== Paul Lennemann wrote: > > I've had issues keeping my car cool in stop and go traffic. I changed > the water pump last winter to a higher flow model. Tonight was the > first chance I've had to get it out and drive it any distance with some > stop and go in the middle. It ran nice and cool on the highway but then > > got into a little stop and go and the temp started to climb. It only > got up to @ 2/3rds the way up the gauge but I could hear some > percolating. Then got it back out on the open road and within @ 5 miles > the temp was back to normal. So that indicates to me that I have an > airflow problem. Looks like I'll be shopping for a flex fan. > > Paul L. > '63 Sport Fury > 440/727 > http://www.1962to1965mopar.ornocar.org/ml-lennemann63.html Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.