New TSP PRC 2.5 heads worth it over PRC 2.5r heads?
01-22-2007, 05:17 PM
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New TSP PRC 2.5 heads worth it over PRC 2.5r heads? I just bought some, not knowing there was a difference but apparently there is. What kind of horsepower difference would there possibly be between the two? I bought them used for a few hundred less than what I could have gotten the new ones for from TSP. The older ones I got apparently flowed 310, and are 228cc
