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Discussion Starter #1
Here is my combo: 348 CID A4 block, TEA ported TFS heads (304/227 cfm @ 0.6"), AFM B-451 cam, Holley Systemax II intake max ported, Accufab 75mm throttle body, 83mm Pro-m mass air, Vortech YS-trim blower, AFM power pipe.

I currently have BBK 1 5/8" jet hot longtubes and 2.5" exhaust all the way back through some flowmaster 3 chamber mufflers.

I plan on running big boost with a cog pulley setup.

Thanks!
 

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Discussion Starter #2
ttt
 

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I would consider a 1 3/4" primary to 3" pipes to be the minimum. Actually the best setup would probably be 1 7/8" primaries to 3.5" pipes, but it will be pretty dang loud and probably cost 2-3 times more...

Billy
 

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Thanks for the advice! I was pretty convinced that I needed to go bigger. The only question is how much. Do you know the relationship between pipe diameter and power level supported?
 
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