Better Torque From A 318

I don't have a car at this time. I'm researching ways to improve both the torque and throttle response of a 318. I've always liked learning about ways to improve a engines performance. I've read that short duration cams are one way, but what about cylinder heads, what runner size, valve sizes to use? Compression ratio, open or closed chamber cylinder heads? Header tube size and exhaust pipe diameter. Ignition timing. I saw a couple of threads earlier on the 318 but I didn't want to hijack another person's thread. I'm working on being more open minded on things and not trying to come off as a expert on anything. I really hate that I missed out on the 1972 dart, but I'm looking steady and looking farther out. Thanks everybody.

First, you need a car. You should tailor some mods with a car in mind, like 66 down or 67 up. Any 318 will make a really nice street car. What do you want. All around, drive anywhere, pump gas, decent mpg? Think a 340 Duster? NO special parts needed. 318 short block, 360 heads, cast 340 or 360 intake, rebuilt TQ, AVS, AFB. 9:1 pistons, bore and hone with torque plates, stock crank, stock rods, ARP rod bolts, balance the works, add a windage tray, and a hp oil pump spring. Dual exhaust, manifols or headers. Call up a cam grinder and get a camshaft with honest answers to questions they will ask. Call 3 or 4 and go with the one you like best. Get valve springs that match the cam. 3.23 gears, good tires, brakes up to snuff, and a decent transmission. Go enjoy your car.