LOW VACUUM NEW CAM

izzleon

New Member
May 7, 2007
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HI THERE IM WONSERING IF ANY OF U GUYS THAT HAVE HAD THE E303 INSTALLED HAVE EXPERIENCED THE SAME THING. HAVE A 93 5.0 AND INSTALLED THE FOLLOWING
.030 OVER, GT-40 HEADS UPPER AND LOWER INTAKES, 1.6 ROLLERS, AND E303 CAM. NOW HOW MUCH VACUUM ARE U GUYS READING? IM READING ABOUT 5 IN HG
AND AT HIGHER RPM I HAVE MORE VACUUM., NO LEAKS AT ALL. IS IT THE CAM?
 
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yup thats wayyy too low. I think you may need to check for vac leaks. With my steeda #18 cam i see about 15" at idle...and i think stock 5.0's see about 16-18"