Quote:
Originally Posted by shawnberry45
What’s recommended if you already have a Stillen high boost pulley?
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It all depends on how much boost you want to make and what you have to support it.
If you intend to spin the SC faster than you do with the 9lb pulley, you should definitely look at getting the 928 impeller.
Things that you can do with pulleys:
Get an even smaller pulley to place where the Stillen "high boost" pulley is.
Get a larger SC-side jackshaft pulley
Get a smaller SC-side SC pulley
Any combination of the above
Keep in mind that changing the SC-side pulleys may require you to get a larger idler pulley.