Heads

when i built my .60 over 318 i heard the best thing to do was get the larger valve 360 heads ..,with that i had them ported and polished ... ive been hearing recently that having the more restrictive 318 heads might actually build torque , something that my engine is lacking quite a bit ...i mean.. i cant even leave a patch from a dead stop and gunning it..would love some input as i still have orig 318 heads laying in the garage ..thanks

Also are there any other sure ways to build torque?

Dan