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#1
08-25-2006, 05:43 PM
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engine vacuum
earlier i checked the engine vacuum on my Z
at idle it was pulling 21 inches if you slowly rev it it will drop a few inches but when you let it steady out it will climb back upp.......if you quickly floor it and let off it will drop to 0 or close to it and then go all the way up to 25 the back down to 21..........these look excellent to me .......im no expert though...i was trying to tune my carb but i dont thinki can improve upon this..the problem is i have good low end responce but crap up top...and i havnt tuned it since i rebuilt it so i blamed it...where do i look now..the timing?. carb is a holley 4150 650 cfm i
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1984 Camaro 5.7L 350 700R4 Holley 650 Cfm Edelbrock Performer Intake-Manifold Crane Cams Duration @ .050": 204/214 Lift:420/442 Summit HEI Distributor Hedman Shorty Headers Hedman Y-pipe Dynomax Turbo cat-back NOS Decal VTEC Decal 
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