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Thread: Injectors for Holley HP efi
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03-23-2012 #8
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- Apr 2009
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- Folsom, Ca
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1 bar is good for 14 psi however you need to accommodate for elevation and rule of thumb is to subtract sea level pressure (14.7) so yes a 1 bar is good for vacuum to 0 pressure (sea level). You need a 2 bar. Grand nationals used GM 2 bar map sensors, BWD part # EC6001
For future search's the GM 3 bar map sensor off a 89 TTA (turbo trans am) is BWD EC1678
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