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when you do a compression test , do you pull one plug at a time and the put it back in or can you leave the plug out and go to the next cylinder ,cause i left each plug out and went to the next cyl. and of course the motor turns over faster so i got a higher reading than the first time example pulled number one all other plugs still in 135lbs went through all other cylinders left all 8 plugs out and tested number 1 again 160lbs should i do one cylinder at a time one plug at a time?
well, professionally you take all plugs out then test and that's how we do them at school but at my house, I take 1 out individually and put it back after each cyl test.
now there all out let me go out here and test all cyl. again
i have
1-155
3-160
5-160
7-160
2-160
4-155
6-160
8-155
ill try tomarrow one by one
I realy don't see anything wrong with those readings
sounds good to me:D ,i put this motor together last spring and even the pugs look brand new
those readings are perfect. the SBC book my dad has says within 6 PSI is perfect for SBC's, in general within 10% is ok.
Pull all the plugs and wire the throttle blades wide open.
ill do that tomarrow