Why not let Brent set you up with a solid lifter camshaft ?
I would be up front if I didn't think I could help.
I enjoy cam design probably more than any other facet of engine building. I send out a lot of cams, but in the past couple months I have sent cams to 4 guys who were immediately able to either dyno the engine or get the car on the racetrack to quantify a difference.
Two guys were members of my Cleveland forum.
One had a 393 who had reached a wall and couldn't get his '70 Mustang to pick up. He had a solid roller from Crower. By simply decreasing the amount of overlap, I picked him up .06 in the 1/8th and 1 mph. (Was running low 6.30's...)
Another guy was running an early Mustang with a 408C. His previous cam was chosen by his builder. I picked him up .4 in the quarter and he was still able to drive the car an hour each way to the track with power brakes.
The other two guys are members here. I switched one guy's cam in his 428 from a 294S to a smaller hydraulic roller and picked him up 27 hp and 35 lb-ft. I'm still waiting to hear back from the other guy. He has a pulling truck with a 390 and wanted to pick up some more mid-range hp and torque.
With fryedaddy's drivetrain and desire to pull rpms, I think we could gain some significant power with a solid flat tappet.