I have a 57 Bird with a built forged crank 292 truck motor.   The engine was professionally rebuilt 20 years ago and has less than 3000 miles since.   It sat for 17 years and is now running.   My problem is the lopy (but awesome sounding!) cam and a 1700 rpm idle with a stock Cruise O Matic.   NOT the best combination in the world.   The previous owner enjoyed it this way but lost interest.   Although fun to drive anywhere except in low speed traffic, I want to slow this thing down and change the cam to something more in between stock and what I have.    Currently the engine has an Isky #301300 cam 448 lift, 286 duration, 250 duration @ .050, 108 lobe centerline.   I wish I knew what all those numbers and terms meant!!!   That being said, what should I be looking for to mildly increase performance from stock but still be civilized with the old Cruize-O (which I want to retain)?    The engine has been bored to accept higher compression 312 pistons, headers, and a 600+ cfm Elderbrock AFB.    I also want to downsize the carb too but want to keep the headers (looks good under the hood factor).   A local shop is going to take it in next month and I would like to understand and be aware of my options.   Any suggestions/advice would be appreciated.   Thanks in advance to all who reply.   J