12:1 break in ? Would 87 +octane boster be ok? - 460 Ford Forum
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post #1 of 3 (permalink) Old 04-11-2013, 04:42 PM Thread Starter
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12:1 break in ? Would 87 +octane boster be ok?

I was wondering if I could use 87 and 104 plus to break in my cam? 12:1 open chamber heads cam is .624 int .646 exh lift dur 254 int 264 exh @ .05 tappet lift. I can get 91 too. Just don't have race gas avlable by the gallon close.

Last edited by 67cougar; 04-11-2013 at 04:44 PM. Reason: Autospell
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post #2 of 3 (permalink) Old 04-11-2013, 05:04 PM
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my 466 with right at 13:1 was cranked up and run in on straight 93 ont he dyno, NO LOAD. took the 93 out and went to race fuel for the pulls.

-Brett

1991 Ranger, (stockish) 460BBF and 2-1/2 ton Rockwells. WORK IN PROGRESS.

RIP Matt (greenbroncoguy) 6-16-86/1-29-12. You will be missed but never forgotten.
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post #3 of 3 (permalink) Old 04-11-2013, 06:44 PM
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Why don't you use the 91 plus the octane boost. Apparently even 10.5:1 doesn't like 91octane.

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