Andy, I was running the OORB 440-1's with an old Reed 271/274 .625 lift roller for 3 seasons until I lost a lifter and scored the cam. I had the Comp 284* .660 lift roller sitting on the shelf for 30 years from my old Stage 6 446 motor so I threw that in with the old Crane rollers to get me back on the track.
The car ran the exact same ET and MPH with both cams shifting at 6500,6700,6800 and 6900.I tried 1.6 rockers and it lost half a tenth.I figured the cam was too big but it kept me racing and the car sounded a lot meaner. I tried 4.86 gears when it had the smaller cam but the car ran the Exact same ET and picked up 2 MPH while pushing it through the traps at 7400. Rather than work the stock block filled/girdled 440 any harder for little gain I swapped the 4.30's back in. I could always try the 4.86's again with the ported heads.
The car has always liked leaving on the brake at 4800 for a 1.37 60ft. If I lowered the launch to 4200 or 3800 it lost 0.15 to 0.20 ET and 60ft was in the 1.40's. I was Leary about running more than 36* timing with 13,5 comp but my reaction times were all over the place, mostly red. I bumped the timing up to 38* then 40* and was able to launch at 4200 with a good rt and run the same ET.
Wong story short, I sent the old Reed cam out to Bullet and had it reground wit 276*/279* dur .670 lift with 1.6 rocker ratio. Do you think that cam would perform better in this combo or will the ported heads like the 284 cam.

PS: My plan was to use the ported heads with the 284* cam on a 14.5 comp 493 that I was piecing together but the crank is .020 under and the only narrow bearings I can find listed are Kings and they have been on backorder for 6 months so it looks like the 446 will be going back in