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Discussion Starter · #1 ·
Can anyone tell me how much vacuum I should see at an Idle on a bone stock 289 4bbl? Not a hipo but a regular GT..

Thanks in advance..
 

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Hmmmm, another way of saying "your engine sucks"....lol


Sorry, couldn,t help myself.

Dang! Just when I got used to being "strange", I became a "newbie". Now I'm a "tire kicker"....thump, thump.....he he
 

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Discussion Starter · #5 ·
Thanks.... Did not have the exact number but knew it was between 16-23 or so.. My new pony is pulling a perfect, nice flat 18 in/hg.
 
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