I just ordered some new goodies for my 5.3 silverado RCSB. The cam I chose is a Thunder Racing 220/220 114 LSA. The tech person I spoke with recomended the 114 LSA over the 112 LSA because it would idle beter and yield more torque down low since my truck is a daily driver. I bought the complete package with springs, pushrods, and retainers; The person I spoke with recomended a dual valve spring from patriot. He said if one spring broke, the other would hold the valve from getting sucked down in the motor thus tearing up the motor. My question: Is a dual valve spring really needed since I will probably only be turning 6500 rpms; thunder racing also sales another cam kit that has the behive comp spring which is a single spring that uses the factory retainers and this kit is about $100 cheaper. The cam is on a 8-10 day backorder so I'm thinking about calling back and getting them just to send the kit that has the comp behive spring. I am also putting a trailblazer torque converter, which I've heard has a stall of about 2800-2900 rpms. The tech person I talked to said this converter would be perfect for this cam. I don't tow anything very heavy; however, I do tow my jetski often. Would this be an ideal set up? I have hooker headers going on with the hooker y-pipe which has the cats deleted. I figured my motor would'nt flow enough for true-duals to be effective over what I plan on doing. Any comments, questions, or suggestions are greatly appreciated. Thanks.