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Originally Posted by PITTSBURGH 64
I'll believe in them once I see people putting 80,000-100,000 street miles on them. I put at least 15,000 on my car every season.
My 60919 with Johnson hyd's works just fine.... I've never been to the track but my set up must be running good because I totally dusted a new GTO at the local street races this week. Aren't those cars suppose to be fast? 
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Why wouldn't they go 80,000-100,000 miles? Fords, and Chevies have been doing it for more than 40 years. If there was a geometry issue with them, it would show itself pretty much right away. Hell the Crysler Hemi had a way more complicated valve train and look how they use them things. I don't see a problem at all with the CV-1 heads running a long time. It's not new technology, only new for Pontiacs.
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Paul Carter
Carter Cryogenics
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64 GTO, under re-construction, 412 CID, also under construction.
87 S-10 Pickup, 321,000 miles
99Monte Carlo, 293,000 miles
86 Bronco, 218,000 miles