dyno numbers

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Nov 7, 2012 | 07:06 PM

#16

68cabby

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Laughing Gas

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Makes me wanna look up what the stock specs on a 390 is haha I have no doubt that with the updates I can look at 200 hp and 300 tq, if I tweak it maybe a lil higher

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Nov 7, 2012 | 07:16 PM

#17

68cabby

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Laughing Gas

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Also..anybody know the exact comp. ratio of an 85 300? I've seen that theyve changed around but what I heard was about 9:1, does this sound right?

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Nov 7, 2012 | 07:36 PM

#18

AbandonedBronco

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From: Boise, Idaho

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As far as I know, 8.5. The EFI was 8.8.

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Old

Nov 7, 2012 | 08:12 PM

#19

68cabby

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Laughing Gas

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Ok..tweeked some numbers...and on the comp program and my specs, valve size, comp ratio..etc., It estimate about 193 hp and 310 tq which I'm happy with

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