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Old 12-18-2025, 05:41 PM
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Skippy597 Skippy597 is offline
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Join Date: Mar 2021
Location: Ephrata, washington
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Quote:
Originally Posted by Lee View Post
Note the cam in my '67, in my signature. It was a SFT from Bullet, using UltraDyne lobes. 247/247 @ 0.050, 108lsa 109icl. In the .060 over 455 I had, that motor ran best shifting at 5900rpm (and I crossed the finish line at 5700). That cam gave up 60' time, compared to the HFT 231/239 @ .050 I had previously.

If I still had the car/motor and was putting in a new SFT, I'd probably drop about 8 degrees off of the intake and spread the LSA a bit more.
Thanks Lee. That's a big move to drop off 8 degrees on the intake side from what I've read everywhere is that would put it below a hydraulic Ram Air IV grind. I'm thinking with the increased exhaust duration and wider lsa than you ran 112 vs 108 I think it will be ok??? Maybe... I'm not sure but I think I'm gonna try the custom crower SFT cam. If it's terrible I can change it later it's not a big deal or big investment compared to a roller setup. I might loose lash it a hair to give the bottom end a boost.

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