MustangWorks.com : Ford Forums - View Single Post - for large duration cam, long or short runner intake to go ?

PKRWUD · 01-27-2002, 06:34 AM

Okay, teacher, educate me.

Why is the answer to his question the opposite for carburetted engines as it is for EFI engines?

Everyone knows that a carb equipped engine with a long duration/top end cam works best with an intake with long runners. We also know (now) that an EFI engine with the same cam works better with an intake with short runners. Why is this true?

Take care,
-Chris

01-27-2002, 06:34 AM	#5
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	Paradox??? Okay, teacher, educate me. Why is the answer to his question the opposite for carburetted engines as it is for EFI engines? Everyone knows that a carb equipped engine with a long duration/top end cam works best with an intake with long runners. We also know (now) that an EFI engine with the same cam works better with an intake with short runners. Why is this true? Take care, -Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!