I know this is 18 years late, but since no one has come along with the answers, i have "some" of them.
Chris, my SNAT, formerly your SNAT, has the following specs:
Lift:
Intake .332
Exhaust .332 ( .498 with the 1.5 rockers it had, .531 with the Crane Gold 1.6 RRs it now has)
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