Compression tests???????

[mark69k20]

Finally home from Kuwait and did a compression test on the 307...

I have read different theories on compression tests and am looking for some input.

I used a new craftsman screw in gauge, took all the plugs out and left choke open for more air. -no oil in cylinders-

I got 155-165 in all. Does anybody know what these motors had when they were new? How bad is 155 on that motor?
Thanks for the input!



The 1947 - 1998 Chevrolet & GMC Pickup Message Board Network > 47 - Current classic GM Trucks > The 1967-1972 Chevrolet & GMC Pickups Message Board
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