350 LT1 compression...Lower it? - The Supercar Registry

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350 LT1 compression...Lower it?

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12-29-2006, 07:13 PM

Keith Tedford Keith Tedford is offline

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Re: 350 LT1 compression...Lower it?

Our L78 runs fine on 91-93 gas as does our '70 455 Pontiac. I think the key is a curve as mentioned above and possibly run slightly rich. 40 degrees was fine for 102 grade gas. These cams bleed off quite a bit of cylincer pressure. More cam would help the situation more.

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