Dual Plane Intake Manifold Dyno Test

Dyno comparison of three different intake manifolds.

[_FE]

Every time I think about 'upgrading' my Performer RPM, I see another reason not to. Looking forward to seeing how the mods work out, thanks for a great video!

[larryw]

Never would of believed the performer would of beat the air gap afr!!

[JSki-kbvf]

The McFarland torklink was once considered the hot setup for 2bbl 9:1 compression circle track motors...but none of us used dynos back then...

[HYDESCRAZY]

You are the man.. once again giving yr time and knowledge that most wouldn't share.

[ragingbull]

I'm not even a Chevy guy but I want that book of data! Thank you Eric for putting this together.

[BEANS-O-MATICtransmissions]

The Performer RPM has ALWAYS tested on top of all dual planes on every test I've seen. It is THE intake to run on a street car with torque and hood clearance concerns.
Excellent video and info Eric, definitely looking forward to the retest of the AFR and Edel !
Why TF do manufacturers keep putting that damn vac port there !?!? They gotta stop. You can sink it flush if you tap the hole more.

[Sludge]

Hell yeah! Thanks for taking the time. I need a pair of SBC heads soon. I've had intakes on my mind

[BillyWilliams-de]

Hey Brother
I also live in Oklahoma.
I watch all your videos 📹

[AndyR]

Knew a guy years ago that swore by the non-airgap performer rpm qjet manifold with an open spacer. Ran that manifold even with square bore carbs. Always seemed to work for him and this makes it look like he may be right.

[donaldhalls]

Awesome comparison, thanks for sharing, all the best to you and your loved ones, all the best to your son aswell

[ElvinLeadfoot]

Performer RPM
When they first came out in the early 1990’s
I had one on a 302 HO
351 Windsor Heads
Solid flat tappet 306 dur. 530 lift cam

It was a beast
3500 to 7000 rpm beast
600cfm Holley vac sec carb

[firebirdjone]

I've never known a dual plane to like a 4 hole. Generally the Edelbrock RPM air gap outruns the regular Edelbrock RPM in about everything I've seen, I would have expected the same from the AFR air gap so I'm curious to see that retested with the open spacer. Excellent video and great data.

[Inthefoxhole]

Back in the day.I had a stock 350 flat top with 882 heads.I took off the factory pre EGR valve intake and bolted on a performer .Night and day difference.Woke that engine up.

[mikef-gidg]

I am a novice DIY guy. I am not sure I my $$$ money will ever allow me to take advantage of Eric's porting skills but hey. I have watched his videos, I think I understand what he talks about, and now he has a book of dual plane intake tests. What ever I build in the future will most likely be home made. So the book is a good starting point...I'm in.

[bonzainews]

It sounds like you need a patreon. That way you can add a lot more testing to your Channel. I would have bought that first intake manifold just looking at it but I'm glad you told me it's a pile of crap. You save me a lot of money there

[jamespatterson]

Thank you for taking the time to share this kind of interesting knowledge. It is appreciated.

[kevinclemence]

The dual plane with the 1" open spacer (WITH the cut out) is a very popular internet discussion test. Plenty of this and that. Personally, I'm looking forward to THAT test. Please do it and post the results, .

[BillyWilliams-de]

Edelbrock designed a wonderful intake manifold.

[anthonyrowland]

The TorkLink probably was great in 1997 or whenever.

[goratgo]

Thanks for posting Eric! For me, more interested in the dual plane tests for my 383 since it will be replacing the anemic 305 in my 91 vert. Camaro for the street. I kept my Weiand Team G high DP which I got back in the 80's, it has most of the divider removed, but was considering buying the Edelbrock air gap for it's benefits instead. Recently found a funky Offenhauser split runner dual plane too. Whichever I use, will need full divider removal since I am switching out the stock EFI for MSD Atomic.