i was just wondering (and i already did a search on it,,and found nothing)


but ya i was wondering if anyone had any experience on porting just teh secondaires,,,i know people port both or just the primaries..but i want fuel economy until i decide to say othewise?

but any idea on heavily porting the secondaires and the exhaust?



and when do the secondaires open? 3.5k?

 

they open however your aux port setup is. stock is right at 3600ish according to the tach. never if they're not working, or all the time if wired open.

if i'm correct just porting the intakes means more air in the system.