New #'s 403ci N/A 559/508
#52
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^^I wouldn't spend the money on those heads. Don't get me the trickflow heads are nice but you already have a lot of power for the cubes you have unless you would consider going top notch with the all pro heads. If I was in your shoes I'll pocket that money or put it on some fikse wheels
#53
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Holy **** lol...those are crazy numbers! Do you need a retune on vaccum pumps? Or is it like electric water pumps where it just frees up power? Sorry new to this LSx thing and may want one for my 408!
#56
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djfury: its 36 tooth u had me wondering so i went out and counted but on the kit you can choose 46-36 tooth i think ive read 46 tooth was for higher rpms