Converter Whine

Hey Guys!
Summer is here and finally got the car going. It's a 340 with a 904 behind it.
I swapped out the Comp Cam 274 and installed a Lunati VooDoo 702 cam and lifters. It started after a couple spins and I fast idled it for about 5 minutes when the oil filter started leaking. Got that fixed and idled it for 10 more minutes and seams like the cam break in went good. Also I put new rod bearings in it just because the engine was out but they really didn't need changed.
I also replaced the Boss Hog converter with a custom built Edge converter that Andre recommended for it. A 2600 to 2800 stall 9 1/2 inch.
I drove it for the first time Saturday and it has a whine to it. If I just drive it easy it shifts good and you can't even tell it has a higher stall to it. But when I step on it the converter slips it has a rather loud whine. If I take my out of the gas the whine goes away. Is that normal? Or should I call Edge and ask them?
I have never had a car with this high of a stall and just wondering if this is something I should worry about.
Then too I'm not using an external oil cooler. Any thoughts on size I should be looking for?