I converted my 71 with factory A/C to 134 and it works great. You MUST adjust the POA valve if using 134, if you don't it wont cool. There was anoher post a week ago or so that explained how to adjust the POA.
Jeff
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I'm not a pessimist, I'm just optimistic that bad things are going to happen.
1971 Cheyenne Super K10 - tilt, cruise, air, am/fm, tow hooks, factory buckets!
1986 Jeep J10 pickup, - 5.3L Vortec with 4L60e and NP241.
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