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Old 03-15-2021, 11:11 AM
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Formulajones Formulajones is offline
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That 60919 cam in a 455 is actually not bad at all. It's out on a 113 LSA if I remember correctly, and even with stock (non bleed) lifters it still idles well enough and makes vacuum, if compression is somewhat decent.

Here is a custom 239/243 done with Voodoo lobes that Paul Carter spec'd, it's a hydraulic roller with over .600 lift but the idea is similar. He ground this on a 112 and I installed it at 106.25 ICL per his recommendations. This car has AC and 3.42's, and is making 12 inches vacuum up at 5000 feet elevation. It's 9.98:1 compression with iron heads and runs great on 91 pump gas.

The voodoo lobes seem to idle a little more tame than other cams I've used with similar duration and LSA. As you can hear, once it's warm and settles into a nice idle, it's only a noticeable lope. Nothing radical at all. I have other videos driving it around, it drives like a stock firebird, works the power brakes just fine, and just sits here and idles at 800 rpm easily. Kick the idle up a pinch more and it's even smoother. Using a Voodoo 704 with just 233 @ .050, 6 degrees less than this cam, even on a 110 I would suspect shouldn't idle any more choppy than this cam once tuned and dialed in properly.

https://youtu.be/AOqwz3QlO5k

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