Not even sure why I'm wondering this, but thought hit me the other day that my intake is too much for my mild motor. 

75mm MAF, 70mm TB, Edelbrock Performer RPM II intake, 24# injectors, e cam, GT40 cast iron heads, long tube headers - pretty normal bolt on stuff.  Car outputs 265 hp and 280 torque.  Edelbrock says the intake should make power between 1500-6500, yet my power curve starts to dive around 5400ish.  It just makes me wonder if actually a more tame intake would make my setup perform better.  Or maybe I should get some better flowing heads to match the intake.  Car does run a little rich and that's with fuel pressure set at 36psi.

Of course, when I install the supercharger (6psi) maybe that will be the great equalizer.

Just wondered what you think?

Right now, it is too much.  It's supposed to be 1500-6500 like the RPM, but it actually starts to take off when the RPM starts to fade.  In fact, it could go all the way to 7000.  It'd be the thing to have after the supercharger and if you intend to get one, keep the RPM II and make sure it's port matched to the heads.  It's flowing too much air and that's why the power drops at 5400... the engine isn't able to spin higher.   

Hmmm...  No totaly sure that I understand the concept behind air velocity.  It's like the motor can't handle when it has to suck in air on it'w own, but if force it in there then it can handle it.  So, I might actually have a faster car with a different intake if for some reason the supercharger doesn't happen.  Good stuff Eagle, keep it coming.  

You have to remember that the cylinder head flow, cam, compression and exhaust all have to match to perform the best.  When one part can't keep up, you'll have a restriction.  The intake would work on it now, just know that it'll be at the top of the rev range.   

I believe this has been done over and over by many people.

My question to help you is? what cam do you have?

I would recomend an extreem energy cam and lifter set from comp cams

also a set of 1:70 cobra rockers. These will aid in the increase of the power band and the larger ratio rockers along with the new cam will help hold the valves open longer for the extra air/fuel. You should do a port job on the heads both intake and exhaust to maximise the air flow.

I have this similar set up on a carburated 306 and it runs 11:80's on motor...I also have a 9psi powerdine supercharger on another car with similar mods except gt40 y-303 heads and a 5 speed that also runs 11:80's (302) Build the motor first and get the most out of it before you supercharge it. There are a lot more all motor classes that you can be competative in and still have a fast daily driver.

I'm running a Ford E cam. 

I was just thinking that more torque would be nice out of this motor and perhaps the intake was hurting that.  Right now I can't even get the car to start anymore (see another post) so that is first.  I went with the cast GT40 heads this past Spring for money reasons.  Although, the car performs significantly better now, I'm still thinking of trying some aluminum heads.  Perhaps that will better match with the intake anyway.

Thanks y'all.

If the supercharger dont happen i will swap intakes with you. I have a GT 40 that is in very good shape but i have a little too much motor for it and your intake is the one i want and need. The lower has been ported a little also. My E-Mail is badass88gt@aol.com . I can send you pics of it