Slant Six Forum
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Okay, now for the Super Simple...
https://www.slantsix.org/forum/viewtopic.php?t=54802
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Author:  Josh P [ Mon Mar 10, 2014 9:44 pm ]
Post subject: 

Dual Dutra Duals are two manifolds. Eliminates the choke pocket and heat riser. They don't flow like headers, but I think they have improved flow over stock and are likely more long lasting than headers.
Image

EDIT I'm surprised nobody's mentioned the aussiespeed intakes. They seemed really promising not too long ago. I really wanted a short runner one.
http://www.aussiespeed.com/index.php?pa ... &Itemid=23

Author:  DusterIdiot [ Tue Mar 11, 2014 6:38 am ]
Post subject:  Not quite...

Quote:
I love the Hyper Pak for appearance, but it is expensive, needs special linkage and if it works like a tunnel ram ( which i suspect it does) it is not for torque but for 3000-6500 RPM HP.
Actually that is not 100% right, I used to daily drive mine and when built with the right combination it would have better low end torque at street speeds, then would come on at the top end if pushed...that being said you can split the plenum to put that ram tuning in the mid range (highway speeds)...

Linkage is not any different than any other conversion you are thinking (Offy/Clifford), the 500 will fit on the super six intake but the holes will limit your throttle bore sizes, for best mpg going to a 500 cfm Edelbrock or 390 cfm holley will be better (note that people have also had some issues with tuneability in the daily driver 500 Holley).

-D.Idiot

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