This is topic RR formula in forum Tech Talk at Northern California Ford Owners  .


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Posted by cflores (Member # 7319) on :
 
Hey whats going on guys I wanted to go with 1.7's on a 302 with 1.90 heads and a E-cam, and im pretty sure it will work, I just want to make sure that I can before i buy the RR, so i was wondering if anyone knows the formula to figure this out. Thanks again
 

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Posted by 68stanger (Member # 7842) on :
 
divide yor cams lift numbers by 1.6, and multiply the result by 1.7
 

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Posted by 68stanger (Member # 7842) on :
 
heres an example

comp xe282

intake exhaust w/1.6
.565 .574

.565/1.6 = .353 * 1.7 = .600 intake

.574/1.6 = .359 * 1.7 = .610 exhaust
 

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