Lifter plunger in the 59 deg toilet

More street than strip.
My 318 with the solid 528
Flat tappet, 3.91,3200 stall 904 28” tire ran 13.0 Last year.
I was hopping for 12’s this year with the hydraulic roller.
The spring pressure is 340lbs at 1.188 and close to 110 closed .
You have gone in the wrong direction.
Ditch the hydraulic rollers and replace them with solid rollers like other members have advised.
Oh and buy a ECU with a rev limiter and set it for your engine build. 7500 rpm is probably not realistic.