My 318 dyno results

Even though that is pretty much a baby cam it has a fair amount of overlap due to the 107* centerline. It calls for a much higher stall converter than you have and a stall converter in the neighborhood of 2500-2800 rpm would help by not loading the engine as much when you shift into gear. Another thing you might try is installing a block heater (or 2 since your in a cold climate). I installed one in mine and love it. If I am going to drive it the next day I plug it in the night before and when I go out in the morning I hit the key and it fires right up and will idle on it's own and I have a whole lot more cam in mine than you do. Best $25 I spent on it IMO