SE351XY

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

NoLeaks2001

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

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2001 Grand Marquis LS, 30K miles mint. Finally a vehicle with NO LEAKS !