HELP: Cylinder Head and Cam Suggestions for 318

What's up guys? Hey so wanted to reach out to the experts here... I'm really wanting to wake up my 318 a bit. I've been researching a lot but wanted to reach out and see what you guys think. I'm debating on buying new heads and a cam to make some power, but I do have a set of old 587's that could be rebuilt. Wondering if I should pair those with a 340 cam or see if there was a better route to take? I'm hesitant to go magnum heads. Read a lot of good about TrickFlow heads but looks like they don't stock them anymore... Would eventually like to get this motor somewhere around 350 hp for a fun street car, just looking for the easiest most direct way to get there.

It's a pretty stock 318 in my 68 barracuda. Currently has a 1406 4 barrel Edelbrock Carb, Weiand Stealth intake manifold, and Dougs D453 headers... Stock gears, 255-60-15's out back

I'm fairly mechanically inclined, but I've never taken my engine apart. I would like to do this job on my own if possible, while keeping the bottom end stock for now. What you guys think?

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