It’s gonna take those heads being pretty good to do what you want at that weight. Just went through several motors/ upgrades on my 3300 pound Dart. Bone stock 360 shortblock.
It started with stock Eddie heads, 4500 8 inch vert, 750 Holley, 1 5/8 headers, 4.10 gear, and a 727. Cam was a comp solid flat tappet. If I remember right it was like 244@50, had a missmatched( for the combo) Mopar M1 single plane on it. Ran 12.23 at 109 and change

I had the heads mildly ported( not a full tilt job by any means) and milled about 30 to help compression a bit, also ran 028 mr Gasket head gaskets. , heads went in range of 260 ish at 550 lift”
Ditched the M1 for an airgap, installed a 950 Holley I had that was known to be very good, Howard’s solid cam 260/264 565/565 lift,
After those changes, car went best of 11.26@ almost 119. Most of the time though 11.40’s in the summer.
Cam really woke it up. 8 inch convertor is a requirement, and just cutting the heads a bit and minor porting helped take advantage of the upgrades.
Strongly recommend the airgap, works nice
I think your going to find that with your weight and 3.55 gears it tough to get where you want.