On Mace's 10psi pulley upgrade it says 98 octane fuel is required, how do these go against the LS1 engines?
Posted by MACE Support on 21 April 2018 07:36 AM
Between traffic lights on the street at legal limits, lots of cars would struggle to keep up with L67 powered Commodore with mild bolt-on mods, LS1 powered Commodores included. This is due to the fact L67's have a strong bottom to the mid-range power band.

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