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Saw it. Kind of embarassing. 385HP? That's well below 351C + stock head production numbers. Wonder if they were building an econobox motor?
 

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I probably wouldn't have guessed the Streetmaster either.


I had one of those on a mild 390 in a '66 F100 shortbed....it for sure pulled like a freight train.


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<font color="red">***New Project***</font>'89 LX 408, SCAT crank & H-beams, Probe pistons, AFR 205, Rawls SFT cam, Vic Jr intake, Pro Systems carb, UPR K & arms w/coil overs.....more to come!!!



<font size=-1>[ This Message was edited by: mstngjoe on 3/28/06 11:35am ]</font>
 

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The issue wasnt total HP, it was comparing manifolds. It was a nearly bone stock 428, dont let the numbers draw you off intent. The issue is that the "best" intakes did poorly, and the "worst" intake by FE guy standards did the best by significant numbers.
 

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On 2006-03-28 09:24, My427stang wrote:
The issue wasnt total HP, it was comparing manifolds. It was a nearly bone stock 428, dont let the numbers draw you off intent. The issue is that the "best" intakes did poorly, and the "worst" intake by FE guy standards did the best by significant numbers.
Point taken as I know they didn't spend much time tuning any of the combo's.He says he has another 428 with the same problem(leaky exhaust valve) and he's doing a before and after dyno test so that should show how much it hurt this motors dyno numbers.
 
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