Intake Manifold Configuration & Consistency

Well, I'm putting my street car back together to do a little bracket racing. The motor that's going in it will be a 408 with a set of IMM-prepped RHS X heads and a solid flat tappet that he spec'd (I think it's somewhere around 256 @.050, .600 lift, I'll have to check when I get home.) Anyways, I have an Edelbrock RPM intake for it and was wondering if the car would be more consistent with an air gap-style intake. I know when I ran the Max Wedge with the stock cross-ram (no valley tray), it had a lot of issues with heat soaking and I never really got the car to be repeatable once we started hot lapping. I would assume that with water in the manifold on a small block, the problem would be at least as bad. I am not trying to make the car faster, just more consistent. Thoughts?

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Well, I'm putting my street car back together to do a little bracket racing. The motor that's going in it will be a 408 with a set of IMM-prepped RHS X heads and a solid flat tappet that he spec'd (I think it's somewhere around 256 @.050, .600 lift, I'll have to check when I get home.) Anyways, I have an Edelbrock RPM intake for it and was wondering if the car would be more consistent with an air gap-style intake. I know when I ran the Max Wedge with the stock cross-ram (no valley tray), it had a lot of issues with heat soaking and I never really got the car to be repeatable once we started hot lapping. I would assume that with water in the manifold on a small block, the problem would be at least as bad. I am not trying to make the car faster, just more consistent. Thoughts?

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If the water temp is the same all the time then its
not a problem.. you have to do everything the same