ET'S with ported J/or other iron heads SB

Got a buddy that has been mid 9’s( 9.50’s) with a stock stroke 340, and small valve iron heads.
Forget if they were 308 heads or another newer type head.
They had 1.88 intake valve.
Car weighs 2700 ish with him in it. Raced it for years, hurt it, now i think its close to being out at the track again this upcoming season
Probably most impressive small block i know of.