Thread: The Best Crate?

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How much are you willing to spend. Both of these motors have 9.1:1, will bolt in, and will accept all of your acessories minus the intake manifold.

No carb, distributor, or manifold included: http://store.summitracing.com/partde...2&autoview=sku

Turnkey motor minus starter: http://store.summitracing.com/partde...2&autoview=sku

9:1 is not the limit for pump gas and iron heads, I'm running 89 in my new motor which is running 9.25:1 under some vortec heads. I haven't tried 87 yet, but I'm confident it will also work. The newer design of the vortec heads greatly reduces the ignition timing requirements of the motor, which greatly reduces the motor's octane requirement. I only need to run 6 degrees at idle with a much larger than stock cam. Those 8.5:1 350's aren't 8.5:1 either, if you run the numbers they'll come out at 7.8:1.