Well if you plan on adding a "little cam" try to match the intake manifold now with the cam you might put in. I would also suggest a dual plane. Edelbrock Performer is my choice. If you decide on a "bigger cam" go with the Edelbrock Performer RPM.
also --do you know if you have oval or rect. port heads--gotta know that before you order intake--if you know the numbers on the heads, we can tell you--oval ports gives more gains with the edelbrock performer
Compared to the stock "pancake" intake, the regular Performer is an unbelievable performance piece. With a mild cam and good exhaust, that's what I would go with on a mostly stock 454. The RPM is only better above 4500 rpm which is pretty much where most stock 454's are done anyhow.
And it should fit more easily under more hoods. I have a mild 427 with 291 heads (large oval, 100cc) destined for a short bed truck and that's what I spent my money on FWIW.
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