Thread: Intake Manifold Swap

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When I got my car, the engine ( a 1968 hi perf 350 sbc) included an Edelbrock 1406 (600 CFM, electric choke) carb on a Edelbrock Torker I intake. Previous owner had had a Holley but had problems with it and dumped it for the eddy. The engine also had had a Crane cam kit installed along with a number of other goodies like the 2.02 fuelie heads, etc. I have left it that way because it has never given me any significant problems. But lately I have seen that Edelbrock does not recommend mating the 1406 to a Torker (I or II) type manifold. I had been thinking about swapping out the Torker manifold for an Edelbrock Performer manifold and keeping the carb. I don't race the car, and better mpg certainly wouldn't hurt.

Opinions appreciated. Is the swap a good idea or should I just be happy with what I got

The Torker, being a single plane manifold is designed as an upper RPM piece....The Performer (dual plane) is much better suited to a street car. More bottom end and, as you said, better mileage. I say go for it.

When you get the new manifold installed, use this owner's manual to dial in your combination.....
http://www.edelbrock.com/automotive/eps_intro.html

And this information to insure that the manifold/head interface is square.....
http://www.streetmachinesoftablerock...opic.php?t=350

Thanks for the info and I printed the material recommended as I am sure it will be helpful. Now to put the Peformer manifold on the Christmas list. I wonder if the could change that request to one of those new Edelbrock polished dual quad manifolds with the matching twin 500 carbs. To preserve the precious union I guess I shouldn't push my luck.

Is it just me or does it seem to anyone else that Edelbrock kinda pushes it with their dual quad set ups. 1000 cfm to a small block????

Oldman2

I've alway run multiple carbs. My 302 in my '27 has 2 x 500's on it. It doesn't meet the normal math numbers for cubic inch vs cfm's, but even with straight linkage I never had a bog and it ran great. Plugs did get a little black in city driving, but the trade off was I liked seeing two of them sitting up there.

Gas milage was 20 +.

Don