350 engine components help!!!!

[chevyfan1980]

Three years ago i purchased a rebuild 350 from high-performance-engines.com with the following:

9.1 to 1 compression
Valves- Intake 1.940" and Exhaust 1.500"
Cam- Lift intake and exhaust .417" hydraulic,
Duration intake and exhaust 247 degrees
Crankshaft: Cast nodular 3.48" stroke

Note: only has about 12,000 mile on it now. Also i have ford 9' 3.70 posi.

I have put on summit intake, holly 750 carb, and headers. Motor has approximatly 240 hp. What can I put in that will boost hp and torque. I have thought about changing the cam, i just dont know to what. When it comes to values and rockers not sure where to go from there. I would like not to have to change the pistons or the rods. I am looking not to spend lost of money, sorry in college! I have plans to put in an electric fan to help free up some power. Hope all the info is helpful, i am just looking for some direction form the "professionals." Thanks for the help!!!

chevyfan