845frankm
Newbie
Posts: 15
Reg: 08-07-24
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01-12-25 07:30 AM - Post#2877001
chevy 350 cylinder #1 140 #2 130 #3 140 #4 155 # 5 140 #6 140 #7 145 # 8 130 good or bad
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 Shepherd
Valued Contributor
Posts: 3679
Loc: Lake George, NY
Reg: 11-11-15
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01-12-25 09:16 AM - Post#2877003
In response to 845frankm
Looks ok. But maximum pressures are dependent on cam timing, compression ratio and cranking rpm.
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bobb
Super Senior Member
Posts: 6916
Loc: paradise
Reg: 09-05-03
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01-12-25 10:30 AM - Post#2877005
In response to 845frankm
the only reading that matters is the first jump of the needle. it may take a few tries to get the correct number.
| 70 L camino, grampa engine, g-force 5 spd, road rage suspension. Pray first before all else fails. |
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 gchemist
Member #271 Senior Chevytalk Moderator
Posts: 26158
Loc: Austin, TX 78748
Reg: 05-09-00
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01-13-25 03:45 AM - Post#2877026
In response to bobb
Was the throttle wide open during testing? #2 and #4 stick out little. Was it warm or cold?
Are you chasing a misfire?
'83 Silverardo XST - ZZ4 powered
'95 Jimmy SLT (Bought @131,814)
'96 GMC Jimmy LS Ret. @236651 miles
'08 GMC Acadia 3.6L SLE
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Stinky
Senior Member
Posts: 1974
Loc: Whitewater, CO
Reg: 05-25-01
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01-30-25 04:23 PM - Post#2877525
In response to gchemist
The only thing that I see is that 2,4, & 8 are not w/in 10% of each other (13psi)
Where ye be?
For me, at 4,670' in Western CO....those #s are fairly decent
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