Dwayne Porter was my go to guy. He ported my set of factory heads and picked the cam for me. A solid lift comp. I took my 440 to the 512 mark. Wish I would have gone to 528. But all in all the car performs well. Has great street manners as well as plenty of go power. Last weekend took to the track. Best time was 11:41 @ 117.6

I have a 71 Challenger that weighs in at 3967 with me in it.
You will find that you need a good converter to wake the motor up. Currently I run a 3800 with 3:54 gears.

I get about 14 mpg when not into it. LOL
If running it you can watch the gas gauge fall.
Definitely use the ProMax mods to tune the carbs. What a pain it is the remove the carbs for tunning. Like it was stated, once tuned they are pretty much set and goooooo.