351c INTAKE MANIFOLD QUESTION - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Australian Falcons Discuss the australian born and bred models here. Includes the 80's 90's and present day Falcons offered by Ford Oz.

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post #1 of 2 (permalink) Old 06-26-11, 08:10 AM Thread Starter
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Join Date: Jun 2011
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Hey all,
New here so go easy on me.

I have a mild 351c with 2v closed chamber heads, slightly opened and smoothed. Running a 540 lift and 296 Ad duration Hyd Cam, standard rocker gear, flat tops , 30thou over, and have a Performer 4V Intake, with a Holley 780 S/V.
Top loader and 3.23 9 inch.
Roller rockers to be fitted soon.

My Question to the pro's is !
As this motor has been running sweet so far with this setup, would i gain anything from changing the manifold? . I am Unsure about the 4V Manifold, and 2V head setup. (this motor pulls Quite hard, no flat spots etc and have had it up to 6.5 -7k Rpm no worries. doesnt miss a beat)
Is the Manifold/Heads port Missmatch a good or bad thing?

I am looking at getting the edelbrock rpm air gap dual plain, as the swap over if i have to go for a 2v port match intake. Is this a Wise choice?

Any help will be Great!!
Cheers all
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post #2 of 2 (permalink) Old 06-30-11, 11:29 PM
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Location: Sunny So.Cal.
Posts: 140

They used to make a 4v dual plain intake with 2v runner size for 351C. Check it out.

2001 Grand Marquis LS, 25K miles mint (edit; now 56K miles) Finally a vehicle with NO LEAKS !
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