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127-131 i belive is the lowest 150 and up is good but the # should be almost equal across the board on all six!
meaning
A...150-147-150-150-151-150 is good
B...150-130-150-147-160-145 is bad
the # in b are to far off from each other and are telling you of up-comming power loss in the near future!

most of the time a good short block rebuild will fix all this!
 
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~171 psi is what you should get if you compressed air 8.5:1 without any pressure loss. (I read this somewhere, I forget where)

Ideal results would be ~160 across the board. Each of your cylinders should be within 10 psi of 160 and there shouldn't be more than 15 psi between the highest and lowest cylinders.
 

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Super Moderator!!ON PATROL ALL OVER!!
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10,459 Posts
read this

click here
it states standard is 156psi or more
limit is 128psi
difference of pressure between each cylinder should be no more than 14psi or less

mine where off too but i still had lots of power dont worrie really unless the car feels week!

but do look into a short block rebuild

monster has one forsale for 1900 i belived shipped and its new!
 
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