Friend is putting a 360 in a 69 Dart. Engine is balanced as an old 360 with the B+M 10239 flexplate. He has built his own intake using an old tunnel ram, a Viper throttle body and welded in injector bungs and plans on using a factory computer, so he needs to use a flexplate set up for an A500 with the crank sensor windows. Any body sell and A500-360 weighted flexplate. Again, it's balanced as an old 360, not a Magnum. Thanks