New BBK or ported throttle body
The spacer requires u to trim about 3/4 inche off your smooth below and ends up being a hasle... as well it tapers back down from 80mm's to 75mm's anyways so can see how more are could get in it?
sold it to a guy for a $100 + his stocker
took the $100 and shipped it off to bo white (well known on here for his porting) and he did a wonderfull job porting it
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Not that i am biased or anything, but if its a bbk or ported one go for the ported one, put the other money towards something else.https://ls1tech.com/forums/removed-locked-thread-graveyard/651047-ported-tb.html
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