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what would be the best ring style for a 400 ci bbc donovan aluminum block with 20 lbs of boost with 1400 hp on e-85 fuel.

what style rings would seal up the best. Application is recreational lake and drag racing use.

I have now total seal gapless top, napier second, std oil. Seems to still have some blowby even with 6 stage dry sump oil pump and venting the valve covers.
Bore is 4.125 with .165 wall sleeve. 3.750 stroke 9.8 deck.
 

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sounds as if something isn`t round if you are having blowby with with gapless. 1 % or less is what i`ve been told. i use hellfire but was going to try total seal. others here would prefer dykes.
 
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