400 Intake
In the great words of The Dude... https://youtu.be/pWdd6_ZxX8c
I personally find a port matched Performer good off idle to 5,500rpm in my engine. No trouble running out of traction. No esperience with the others but they tend to get bad reviews here.
EDIT: I for one was interested to see if anyone had done further flow/bench testing on the Edelbrock vs. Weiand.... or maybe had some new dyno numbers on a different motor. But I guess this thread is over cause we already have a viable answer which Tim posted up elsewhere.
EDIT: I for one was interested to see if anyone had done further flow/bench testing on the Edelbrock vs. Weiand.... or maybe had some new dyno numbers on a different motor. But I guess this thread is over cause we already have a viable answer which Tim posted up elsewhere.
https://www.ford-trucks.com/forums/1...anna-know.html
https://www.ford-trucks.com/forums/1...shoot-out.html
https://www.ford-trucks.com/forums/1...ntake-wtf.html
https://www.ford-trucks.com/forums/1...b-upgrade.html
https://www.ford-trucks.com/forums/1...-351-400m.html
https://www.ford-trucks.com/forums/9...e-quick-s.html
https://www.ford-trucks.com/forums/1...-400-ford.html
just some of the threads I found when I typed "intake" into the search bar.
With that out of the way, I prefer the new China made Weiand. Its smoother and more rounded in the runners during transitions and has shown to produce a bit moretop end power than the Edelbrock performer. The Performer has more squared off runners and more drastic squared off transitions from plenum to runners. It also has smaller runners and produces a bit more low end torque. Either will work, so go with what's cheapest. The SP2P is a great manifold for a stock engine that's looking for some low end boost, but it will reduce top end drasticly above 4000rpm, many don't consider it do too the extremely small runners. On a modified engine you have pretty much one of two choices, Weiand or Edelbrock, both are good. The above threads will shed some more light on the issue.
thAnk you for the links
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