408 ignition curver advice

The 408 in my Swinger seems pretty lazy at lower rpms and I am thinking its my timing curve . I had the engine dynoed but that only covers 3000 - 7000 rpms .

The build is as follows
W2 heads ported
246/250 @ .050 / .648 lift on 108 solid roller
W2 Victor intake
9.5:1 compression
850 Pro Systems carb
Daytona Sensors CD-1 programmable ignition
TTI 1 7/8 headers with 3” exhaust and crossover all the way back .

My current curve is 18 intial and 32 total . Would 25 by 1200 be too much ?

Looking for more torque in the 1500-2000 rpm range . This thing should melt drag radial tires at will when I roll into the throttle . IMO .

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Nice ride!. The cam is not the problem since my buddy has a 246/250 on a 108 ls flat tappet cam, ported victor, 10.1 compression in a 408 and it doesn't suffer from lack of low end in a heavy short bed dodge. His engine made 500hp/500tq and he has 4.56s with 30" tires, I think the 3.91s would be better for you. As far as the timing curve on the few 408s that went across our dyno @Newbomb Turk found all of them wanted around 24-26 degrees timing at idle with nothing more until just after peak torque then an additional few degrees. This type of curve made the most overall power and added 15 or so hp at peak.