TPI idle vacuum?
06-18-2012, 01:18 PM
Holley HP EFI w/TPI
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Location: Kanata ON
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TPI idle vacuum?
I've just installed a TPI intake onto my '70 block, running Holley HP EFI.
06-18-2012, 01:21 PM
Racer
Member Since: Sep 2010
Location: se iowa
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I might be off base but isn't the cam a variable in the amount of vacuum you have?
06-18-2012, 01:22 PM
Holley HP EFI w/TPI
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06-19-2012, 01:09 AM
Race Director
Member Since: Apr 2002
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Mine measures 15 inches at idle, hot. Stock everything.
06-19-2012, 07:36 AM
Le Mans Master
Member Since: Aug 2007
Location: WV
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With my stock engine mine was 17 in at idle. I would say anything within a few points of this would be ok...WW
06-19-2012, 03:16 PM
Holley HP EFI w/TPI
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That's about 55-60 Kpa, give or take, I think I'm in the mid 40s right now.
06-18-2012, 01:22 PM
