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I have been pondering the idea of changing out my stock intake manifold for a much lighter, better flowing aftermarket aluminum one. I would love to shed some poundage off of the front end, and I could gain some more power in the mean time.

I have a 69' 351W, mild cam, slightly stiffer valve train, bored .030, 1405 edelbrock carb, and everything else falls into the stock category as far as engine goes. Drive train is a T5, with a 3.00:1 rear end.

I like my low end torque, I like it a lot. I don't want to lose my ability to accelerate in fourth gear at any speed. What should I look for in a manifold? A gain in HP is good, but if I have to sacrifice torque for that HP gain, that is not good. Let me know what you think.

Dave

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Consider the Edelbrock Performer for low RPM torque. Experimenting with carb spacers can help fine tune the manifold for your car for a little more torque, depending on space under the hood.

I replaced the Performer on my 351W with a Performer RPM and regretted doing so. I am sure the engine made more horsepower, but I miss the torque and will put the Performer back on with a one inch spacer.

Hope this helps,
Russ

Russ

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If you had 3.50's or higher numerically in the rear and raced the car occasionally, I'd say you could run the Perf RPM in your stick shift car...

But as things are now, I would concur with the Perf recommendation...you might experiment with a spacer for both low-end torque as well as heat isolation...

I use the RPM on the race car and am quite happy with it (mild engine) but the lack of a heat crossover and the port volume lends itself to more of a strip/strip application vs daily driving...

Pat
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My buddy went from a performer to a weiand X-CLERator on his 351C/T5. He said he didn't lose any low end and gained a lot of top end HP. He had the same worries you do and is very happy woth the swap.

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