The 350s tend to run a little hot. 200 to 215 is not unusual for a 350.I live close to the big Summit Racing shop in NE Ohio and they carry a great selection of custom wheels with a variety of backspacing.Ya might wanna order a Summit cataloge and look thru it.I have a 55 with a 350 and stock radiator,and no pusher fan. I just use the stock fan with a good shroud,and no problems.
