The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - The 78 gets a heart transplant

slugish · 05-12-2009, 11:23 PM

sounds like a lot more duration than a 268 comp cam --what's the compression ratio > that has an effect on the sound as well .

05-12-2009, 11:23 PM	#14
slugish Slugish Join Date: Jan 2005 Location: Earlysville, Va. Posts: 1,024	Re: The 78 gets a heart transplant - A big one! sounds like a lot more duration than a 268 comp cam --what's the compression ratio > that has an effect on the sound as well .