I have a QF 735 VS on my 351C and it runs very strong, no bogs at any speed. I have a 6.5 power jet with the stock squirters and upped the jets a few sizes. It spins the tires easily from a dead start with no brake and if I floor it from a 35-40 roll it breaks the tires no problem. I have to be careful not to go sideways cause of the posi.
I’m .040 over with flat top pistons, blue thunder intake, 71 closed chamber heads with 10.3:1 compression. Cam is Crower Power Beast 292/302. Pretty close but I guess I have a little more cam than yours. I have a c6 auto with Trans-Go shift kit, 2500-2800 stall converter and 3.50 gears.
l’ll have to get back with you tomorrow and I can tell you exactly what jets I have in, my notes are out in garage. I think I have 74s in the front and 78s in the rear? I’ll let you know for sure tomorrow.
Now that I think about it, I had that same cam in my engine before I had it rebuilt. It seemed to fall flat on its face at 5000 rpms, just had nothing up top. Even had the same 770 carb for awhile, then I switched to the Quick Fuel. The QFT definitely was better than the Street Avenger, but it still died off fast. The Comp 270h cam is a single pattern cam and Cleveland’s like a dual pattern.