69 L78...go pure stock or???????

[Wardy]

Wouldn't option 1 result in a square/oval port mismatch? I've read where this can actually work OK, bit there really shouldn't be a reason to do it in your case.

[VintageMusclecar]

Chris;

I didn't bother with trying to run manifolds on the 496 because that cam would never in a million years work with them. I would guess the power loss with that cam would've been at least 50 HP, probably considerably more.

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I think keeping the cubes at my present 454 is best idea and next rebuild going 489/496 would be an option. Hey, that's why they make 396 air cleaner stickers, right?

[/ QUOTE ]

Sounds like a plan.

Eric

[agtw31]

if youre only going on the track once a year,throw some manifolds on,change your cam,keep what you have,and get a scattershield and a real good loop.

[VintageMusclecar]

Chris;

Here is a pair of service dated 291's on eBay that seem to be a decent deal.

Eric