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geezer#99 · 10-17-2020, 06:32 PM

Getting caught up in the numbers game, are you.
That’s a normal thing!
Still a bit of a mismatch comparing true compression to cam duration. They say nominal 9 to 1. Translates to 8.7 to 1. Roller cam more forgiving though. And better heads.
With a sharp timing curve it’ll work. Their recommended timing is dismal. You need more than double their 8 initial.
What trans you running?
What convertor?
What rear gears?
Are you prepared for a lumpy idle cold blooded motor?
Not a set it and forget it motor.

10-17-2020, 06:32 PM	#6
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,508	Re: Chevrolet Performance Crate Engine 195hp vs 290hp Getting caught up in the numbers game, are you. That’s a normal thing! Still a bit of a mismatch comparing true compression to cam duration. They say nominal 9 to 1. Translates to 8.7 to 1. Roller cam more forgiving though. And better heads. With a sharp timing curve it’ll work. Their recommended timing is dismal. You need more than double their 8 initial. What trans you running? What convertor? What rear gears? Are you prepared for a lumpy idle cold blooded motor? Not a set it and forget it motor.