360 does not seem to be making power and is slow in the 1/8. Need help and/or suggestions

440BelII, don't mean to derail this thread, But I would like to ask you about an 1980 Mirada you bought back in 2018.
SOLD - '80 Mirada Drag Car | For FMJ Bodies Only
This car use to belong to me, I built it back in the early 90's and sold it in 2000. the outside appearance has changed since then, but the rest is still the same. This is the car when I owned it. 1207191125.jpg IMG_1322.JPG
I use to run the car at Lebanon Valley N.Y. and English Town N.J. with a W-2 372 inch small block. My little monster in the driver's seat is 24 and is 6'7" now.