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Old 08-02-2009, 09:53 AM   #1
Tim H
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Default Re: Intake & Carb Recommendation for 481" BBC

Ok, thanks for the feedback. Good to know about the pushrods and head bolts up front. Their heads also have a raised exhaust port I believe,which I think is not really prominently mentionned in some of the descriptions.
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Old 08-02-2009, 12:27 PM   #2
Michael Pliska
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Default Re: Intake & Carb Recommendation for 481" BBC

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Ok, thanks for the feedback. Good to know about the pushrods and head bolts up front. Their heads also have a raised exhaust port I believe,which I think is not really prominently mentionned in some of the descriptions.
Yup, they are 0.400" raised, which was a pain for me as I had just built a set of headers using both stock LS6 heads and angle-milled L88 heads to mock up for. I eyeballed it for fitting raised-port heads, but ended up having to do some surgery to get them to work. Glad I hadn't had the headers coated yet!
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Old 08-04-2009, 03:07 PM   #3
Charlie Yannetti
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Default Re: Intake & Carb Recommendation for 481" BBC

I'm going with the 454R and a decent 1050 on this one..... ran that set up on my 472 and it was great..... 1050 was almost out of the box too.......
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Old 08-04-2009, 03:47 PM   #4
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Default Re: Intake & Carb Recommendation for 481" BBC

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I'm going with the 454R and a decent 1050 on this one..... ran that set up on my 472 and it was great..... 1050 was almost out of the box too.......
What model 1050 are you using, and what types of changes did you need before?

Thanks,
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Old 09-09-2009, 08:57 PM   #5
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Default Re: Intake & Carb Recommendation for 481" BBC

I am running a 468" with port matched GM aluminum heads, .712/.712 cam around 274/278 duration. Goes 6 flat @ 3000#. Using the Edelbrock 454R out of the box, Holley 9375 1050 out of the box with a little more jet. Decided on the 9375 because it is annular discharge, supposed to work better than the 8896 with a stop. Have been very satisfied with what I use, but haven't really tried anything else. Good luck.
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