What pulley size can i run with mace airbox 4 inch induction pipe 2 extractors, 1/2 into 3 inch exhaust?
Posted by on 04 August 2018 05:14 AM
With a custom dyno tune, the max you should be able to run would be a 3.0 pulley. In saying this, though, value for money, we would recommend a set of higher ratio rockers first.

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