Hey Deuces! Warm welcome to this site.[smiley=2vrolijk_09.gif] I have the Zipper cams and went with gear drive. I went from a basically stock engine. I had screamin eagle exhaust and SE air with download. I was going to go with race tuner with these cams but since I went with D&D Fatcats, cams, lifters, adjustable pushrods, fueling pump, and shim, I decided to go with a mapped Thundermax ECM to save on dyno time. Here in Memphis my dyno man is good with the race tuner but it would take about 6-8 hours to map. Instead I think it was 2-3 hours which included a dyno before install to compare.
I am very pleased with performance of bike after cam install. I too was not looking for top end torque. Tony from Zippers called me today and said you live close to me so if you want to get together and ride mine your more than welcome. I very seldom ride with out my King tour pak and noticed alot quicker response from before. I can get the front end up and did not do that before.
I would be curious how cams would be with Rhineharts and SE racetuner. A few weeks ago 04hd103 and 103HunDer came down and we took out on a wide open 4lane road. I trailed behind them as they let er rip. 04hd103 has Rhineharts and racetuner with SE air and his stayed right with mine. The Rhineharts and FatCats wide open was awesome as I was trailing on Brians and could barely hear his scramin eagle pipes.

I believe they cut it off around 113mph. 04hd103 did not have a tour pak on it and I had my King tour pak on it it is loaded but the difference in weight of riders probably made it even because when they swapped 04hd103 bike seemed faster.
I will pm you my cell # if you want to call me. Good luck and God Bless!
JR [smiley=banana.gif]