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ok I know the witch oil thing has been beat to death

604 Views 0 Replies 1 Participant Last post by  Jebchevelle
Here is my qeustion is it worth the extra cost to run synthetic in a big block. that is more race car then street car with a solid roller cam if so what is the good stuff to use.
I normally run Vavoline VR1 synthblend racing oil 20-50 but wasnt sure what to run in the new high comp motor.
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