I would atleast get a mail order tune, better to find someone local to tune it. I have heard the canned tune is crap, drivability issues.

 

Now that you been running it bit longer any additional details, pros vs cons? How's the fuel economy? which pulley are you running? you have a 5.3?

I am still looking into the Edelbrock over the GM LSA supercharger.

 

Fuel isnt much worse than I got before with just the cam and lift, I get approx 10-11 in city and approx 13-14 on hwy. I believe my pulley is the 3.5 inch at full boost see 9 pounds. I do have the 5.3, only issue I had was the inner cooler location since I already mounted a trucool 40k I had to move the ic to the side and reroute the lines. It was making the truck get hotter on the hwy by blocking too much air flow. She runs good, I just got done adding Fox coilover 2.5's with resivours. Either way I think you will love any supercharger you get.