you can defineitly tap them a reg pipe tap.they are 2 differnt sizes street and preformance will know off hand. one is a 3/8 pipe tap i believe the holes are already the size you need if i remember right. i used dry ice in the tube and than heated the pump with a propane torch and they came right out. just screwed a/n fittings in for heater.
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my name is Eric Hokenson I have a dream of building ten of the coolest hot rods out of my home shop wish me luck I am going to need it! - more pics on my web site www.erodzcustoms.com this is just for fun and i am NOT looking for any more work!
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Brian Hobaugh SCCA National Tour June 2014
First Hemi 'Cuda Convertible Ever Built
Short clips: Goodguys Pleasanton autocross and pit videos
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