when i purchased my 69 the previous owner had installed a new heater core....my question is the cores outlets are 5/8 and 3/4......the 5/8 is on top..w/ the heater hose running from it to the intake manifold outlet...the 3/4 outlet is running to the water pump..vehicle does not have a heater valve on it...my problem is that i am getting very little warm air @ best from it...from some other engine pic posts ive seen it looks like either the heater core is in upside down or is plumbed wrong...but the correct hoses are running to the correctly sized outlets..the posts that i have seen show the5/8 hose on the bottom of the heater core and the 3/4 on top.....any ideas or suggestions..as it is starting to cool off here in Northern Indiana....thanks............Ken
