[Guest]

I OWN AN EVO 1 AND WANT TO RAISE THE BOOST SLIGHTLY, WITHOUT HAVING TO GO TO THE EXPENSE OF GETTING A NEW CHIP.

I UNDERSTAND THAT YOU CAN ALTER THE BOOST BY ADJUSTING THE RESTRICTORS ? ETC BUT IT WILL NOT ALTER THE FUEL SO YOU HAVE TO BE CAREFULL, I'VE ALSO READ ABOUT PUTTING IN AN ADJUSTABLE VALVE ?