Or, as P-dude says, just pull the pressed studs, tap the resulting hole for 1/2-13 threads and use the ARP studs with 1/2-13 bases and 7/16" tops. Easier, faster, cheaper.
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'72 Formula 400 Lucerne Blue, Blue Deluxe interior - My first car!
'73 Firebird 350/4-speed Black on Black, mix & match.
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