Could you please tell me if it would be safe to run a L67 with a stage1 crow cam & 3.4” pulley on a stock tune? Jason August 16, 2023 06:05 Updated It will run fine. In the absolute worse case though, we can touch up the tune to suit from our end but I don't believe that it will be needed. Comments 0 comments Please sign in to leave a comment.
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