Thread: Loss of power...???

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Now that I'm a little more awake, and have had a chance to think about this a little more, you might have a leaking gasket somewhere allowing coolant to seep into the A/F mixture portion of the manifold when the motor heats up and the metal starts to expand a little. In my line of thinking, this could cause a lean condition and depending on the science involved and where it is actually leaking, the resulting steam could produce a little back pressure against your primarys and perhaps cause the feeling you have at the gas pedal.

Now, please note, that I am not an expert, and I have never seen anything like this happen. This is simply my hobby and I may be completely out to lunch here; but, I figured I'd throw it out as a possible theory and in turn learn from the real experts if could be possible.

Anyway, good luck.
Dutch

Temp sensor is in the passenger side head. ok setup is a 350, 360 cid, 64 cc, 2.02/1.6 valves, lunati voodoo 60102 cam, edelbrock performer rpm, holley 650 dual feed w/ mechanical secondarys. The exhast actually burns your eyes a little if you stand behind the car... so wouldn't this be a rich mixture???

Everybody's getting a little off the basics here. What's the carb? Electric choke? Have you made sure the choke is opening? Check it after you reach operating temp. If you floor it, is it still sluggish?

Oldman

Holley 4777C, Choke is wired open all the time. It's feels quite strange, it is still responsive but just has about half the balls as it did up to that temp. The carb is probably 10 years old, has been rebuilt once and I installed the trick-kit last year which after it ran great, much better than it did the 9 years prior.