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Old 06-06-2005 | 07:18 AM
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Cracker Jack RC
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Default RE: Do they really cost more???
Prop :

The PTEX ( AKA SRB) material is a UHMW (Ultra High Molecular Weight) based plastic, that is primarily used on skis and snow boards. The UHNW, as the name implies, is a very dense material such as the G10 and phenolic.

Never used it for Carb blocks but I will get a chunk and let you know. I see that the PTEX also comes with a graphite binder...how cool. Don't know why some blocks are longer than others, can't imagine it would improve performance...maybe longer is for a slide carb?
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