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Discussion Starter #1
what is the compression on a 351w supposed to be? psi not ratio.. I just put this motor back together and dropped it in. and now it sounds like there is no compression it is just turning over without firing at all.
Thanks guys
 

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I would say for a fresh motor look for around 175 PSI, remember to hold the throttle body open while cranking the engine. A worn out engine is down to like 130 PSI or so, all variable depending on the CR of what you are running.
Stan
 

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sounds like timing is off. your intake valve is opening before you reach TDC and allowing compression to escape back though the intake
 

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Discussion Starter #4
thanks guys.. I was getting 0psi..apparently l had the rockers adjusted too far down. backed them out one cylinder at a time and now I'm up to 150 per cylinder..
 
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