Thinking of possible doing a cam swap this winter, just curious as to what you guys think I could possibly gain or if it would even be worth the time.

Car is a 75 duster 3150 lb with driver, 727 5000 stall, Dana 60 with 4.56, 30x13 tires, ladder bar.

Current engine is:
440 stock crank, eagle rods .040 over 10.9:1 compression
Trick Flow 240 heads OOTB
Proform 850 carb
Edlebrock Victor 440 intake
1.5 rockers
TTI 1 3/4" headers with 18" glasspack mufflers
Mopar Performance .557 solid flat tappet

Car went a best of 10.49 with this combo, but typically is a 10.7s car.

I have a Mopar .590 cam in another engine so it would just be a matter of swapping cams in the motors.

The other motor ran 10.9s-11.0s
440 stock crank, scat rods .030 over 10:1 compression
440 source heads that were hand ported (port job didn't made a bit of difference)
Holley 750 DP
Weiand single plane intake
1.5 rockers
TTI 2" headers with 6" glasspack mufflers
Mopar Performance .590 solid flat tappet


I shifted both engines at 6,000 and picked up a good 2 tenths with the newer engine, but it has almost 1 pt of more compression, better heads but smaller headers. I'm just wondering if I swap the .557 out for the .590 if that will utilize more of the potential of the Trick Flow 240s or not.