No experience, but curious as well. I wonder if the intake tract that is so phenomenal for up to 400", would get small at 500"? I personally know a guy making 620hp @ 402" N/A with cathedral ports( ported). I'd guess that the later square ports would be up to the task at 500". Hope you get some responses with real world experience.
__________________
'65 Tempest 467 3650# 11.30@120.31
|