Re: 383 and roller cam for 78 c10
If you want a smooth idle you can't beat the L31 cam and vortec heads. I have the L31-R crate motor in my C10 and it's the smoothest idling 350 I ever owned. It still has good power with a lot of low end torque. If you want hp go with the LT1 cam and vortecs.
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