Hardin Marine just added the MerCruiser 454/502 EFI Systems application to
our line of high performance Flow Command adjustable fuel flow modifiers.
The billet aluminum Flow Command is designed specifically for stock or modified
454/502 EFI systems. The Flow Command allows modification of the fuel flow
rate to properly tune the air flow ratio. Ideal for use with high flow
exhausts and intakes, the Flow Command incorporates these exclusive features:
Bolt-on adjustable modifier for stock fuel regulators