Use whatever you like and will fit. Some engine combinations make a six pack hood almost impossible to use due to lack of clearance. I have used them all. The six pack set up was with a stock headed BB,(oh yeah it went 9.60's), the cowl(crappy pic) was with a low deck B1 and we tried a six pack set up but would not work without a ridiculously tall scoop, and lastly the hybrid one is a 99 Hemi.


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