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6/10/16, 12:59 PM   #6
slowpoke
slowpoke is offline
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Join Date: Mar 2014
Posts: 35
 

You can also buy a tool called an "Air Lift" that vacuum's the air out of the system before you fill it. We use this tool on cars at the shop all of the time and it works good too. I originally started this thread to get an idea on what most were using to slow the flow thru the radiator and based on all of the personal messages I have received as well as the post put up here it looks like 5/8 hole is the most common size that works. Thanks for the info guys.