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FE Power Forums => Non-FE Discussion Forum => Topic started by: 427LX on August 14, 2025, 10:04:19 AM

Title: Dyno tests results of the new 351W Tunnel Wedge intake manifold !
Post by: 427LX on August 14, 2025, 10:04:19 AM

One of the guys did a dyno compare on his hot street 418W. Victor Jr. with 830 Holley vs. the Tunnel Wedge with a pair of Holley 465 carbs.  The Tunnel Wedge was bolted on
right out the box with no port matching or other work. 1 inch 4 hole spacers on the intake and heads were AFR 205 I believe.  Took some jetting changes to try and get the cylinder A/F as close as possible as O2 sensors for each header pipe. The Tunnel Wedge was ahead by 30 HP and 11 Torque at 6400 RPM !

Title: Re: Dyno tests results of the new 351W Tunnel Wedge intake manifold !
Post by: pbf777 on August 14, 2025, 10:40:56 AM

    Just out of curiosity, do you know which example of the "Holley 830"?   ???

    Scott.

Title: Re: Dyno tests results of the new 351W Tunnel Wedge intake manifold !
Post by: 427LX on August 14, 2025, 12:20:51 PM

Quote from: pbf777 on August 14, 2025, 10:40:56 AM

    Just out of curiosity, do you know which example of the "Holley 830"?   ???

    Scott.

No I don't. It was the dyno shop carb and I wasn't there during the runs. Does it make a difference?

Title: Re: Dyno tests results of the new 351W Tunnel Wedge intake manifold !
Post by: 427LX on August 14, 2025, 04:13:20 PM

Well I was impressed with the results and that's all that matters! Was my idea to have it made.

Title: Re: Dyno tests results of the new 351W Tunnel Wedge intake manifold !
Post by: frnkeore on August 14, 2025, 04:30:22 PM

I would say that, you did very well!

Especially for a as cast manifold.

Title: Re: Dyno tests results of the new 351W Tunnel Wedge intake manifold !
Post by: JamesonRacing on August 15, 2025, 06:20:39 AM

Impressive power gain!  And looks impressive as well.  Congrats!