Just restarted my break-in process on my 7 port after my mistake of letting it idle at a temp too cool.
Drove it around and kept the rpm's pretty low and the temps ranged from 195 to a high of 220. I went through 3 tanks like this and this has a very crisp response and sounds great with the dyn. plat. 053 pipe.
Eveytime I toutched the throttle it had a large plum of smoke being expelled from the exhaust. After each tank I leaned the LSH just a hair. This is going to be a bad mofo.