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OG SF Member #603
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I'm considering a 6265 w/ the divided housing and had a question about which a/r would be best. My setup is stock motor/head w/ divided mani. Hoping to go E85 and Pro-EFI. Shooting for as close to 700rwhp/700rwtq as possible. I believe the available a/r options include 1.00, 1.15 and 1.32. There are smaller, but I'm not considering them. I remember a couple years ago reading that it was best to get the largest a/r when using a divided mani/housing, but I'm not sure that is still the case. Any input would be greatly appreciated.
 

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i went with the 1.00 housing on the one i just ordered. i was looking for a better spool. That being said though, the 1.00 should still be capable of putting down 650+hp on stock block, Pro-EFI, E85 fuel, and 29-32psi...
 

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A 1.00 works nice on a 2J, but of course the 1.32a/r will give you the most power. It might actually hurt your trq though. 1.00 or 1.15 gets my vote.
 
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