The RAIV springs were good for at least 6100 rpm`s w/o "bouncing", how bad is that?
And, RAIV heads uses 30° intake seats, like all large inte valve heads, (except 455 S.D.). NOT 45° intake seats.
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1966 GTO Tri-Power
1970 GTO TheJudge
http://www.poci.org/
http://gtoaa.org/
Last edited by Kenth; 02-09-2025 at 09:07 AM.
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