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Old 03-04-2011, 06:48 PM
bobdmac bobdmac is offline
Older than old school
Location: Oaksterdam, Yay Area
Join Date: Feb 2011
Posts: 4,414
Mein Auto: 2001 540i/6, '90 k75s
Franka, in thinking about this, the fuel vaporizing rationale for the "power grooves" might be more of an issue for carburated engines than for the finer and more readily vaporized fuel injected mixtures.
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