Quote: so you dont go into the head? just the header flange.
Not the header flange, just use existing or replace with longer header studs, the paddles normally aren't drilled for a particular pattern, there's half a dozen different patterns for Hemi heads alone.
Ronny 6.789 @ 198.63 **.956 Brand New 60'*** 4.17@ 169 1/8th mile John 14:6