318 running with low power - dyno

Helly guys. I'm Lucas, a great fan of fabo.

I have a Brazilian Dodge Dart 1975, you guys could think in a 1969 USA Dart (basically the same car). Here are the engine specs:

Rebuilt (5k miles), bored 0.30 over.
Federal Mogul Dished Pistons (8.5 CR)
Original Heads, port porting (poor job), 1.88/1.6 Valves (Milodon)
Adjustable Rockers (273 engine)
Action Plus Weiand Intake 8007+
Edelbrock 750 cfm
1" carb spacer
stock headers
2.5" dual exhaust
camshaft comp K20-223-3
std crankshaft
mopar spring kit for new mopar performance distributor (32º degrees max advance)
flex-a-lite 17" fan
high volume oil pump
mopar performance orange ignition
3.15 rear axle ratio
and regular itens

The car runs fine, but have a very poop wheel hp (160 whp), see image below.

I'm running 10.6s in 1/8 mile.

I'm depressed about the power peak rpm (just 4600 rpm)
There's something wrong? Cam too big ?

Thank you guys!

Please help me.

See ya!
View attachment best_run.jpg