A single 11" diaphragm booster has about the same area and hence boost as a dual 8" unit. Both are decent options with a 15/16" to 1" bore master cylinder with the C5/C6 front and LS1 rear calipers. The DSE dual 9" unit should give you approximately 30% more boost and is supplied with a 1" bore MC.
How much vacuum does your engine generate at idle?
Tobin
KORE3
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