If you’re chasing ET, there is def some left on the table if you’re running a converter that flashes 2800 coupled with a cam that’s 245@.050.

This is where the soul searching has to begin......... how much street friendliness is one willing to give up to knock the ET’s down.

My mid-11 combo from 1991.......
3575lbs
448 making 500hp(mild ported 906’s, RB ssh-44 cam, 2” headers, Torker 2, Holley 850)
10” converter(almost 4000 flash)
4.10’s, SS springs, lite weight wheels and tires, 29.5 x 10.5 slicks

Went mid-11’s at 118

The change to a 9” converter that flashed 4900 and some 4.56’s resulted In low 11.20’s@121+

If you’re serious about chasing ET, first thing I’d try is unfortunately one of the least enjoyable to do..........the converter.
I’d get a 9.5” in there.