Just thought I would post my results. My car has always had chronic temp problems even when it was still a 326. I have tried everything out there, so I thought I might as well try this. When I pulled my pump and found 1/2" of clearance I was sure this would do it. I have a stamped blade pump, and I have not been able to locate a cast style. Since my clearance was so excessive, I bent the blades of the pump as well as the plate to get it to about 1/16" of clearance. It was an anxious test drive, being almost sure this had been my problem all along, but no dice! It didn't even phase it - no difference, temp creeps up at idle. This is with a 2-core aluminum rad with the monster ford cooling fan. You guy's had my hopes up, and it was a fun little experiment, but I'll go back to just living with my hot Pontiac.
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