Long story short, I've been chasing a squealing sound from the car for a while. Changed a bunch of pullies (as some were bad), and now have found that my TVS has developed a large and rather loud squeel which I pin pointed by taking the aux. idler and changing belts. I now have a choice to make. My current setup is as follows: Stock 13/14 Trinity w/ 2.4 Lower ID1050X VMP BAP 1 7/8" Longtubes, X-Pipe JLT 127 Intake SCJ Throttle Body Stock ATI Balancer, Kinetik Crank Saver Bunch of suspension/cooling stuff My car sees around 15-16psi with this setup and made 680whp with spiked 91 octane (couldn't empty the tank). I have an ATI 10% lower that I will be putting on as well. The goals for this car are mid 700s as it sits, and it will rarely be on straight pump gas. Car will see a decent amount of strip time, as well as some street miles. My original plan was to sell the Trinity and use some of that to fund a Gen 4 2.9 Whipple, and run that with the 10% lower and 3.0 upper pulley (and adjust as needed). Now that my Trinity needs help, I started looking into getting it rebuilt/ported by Jokerz Performance. Long term goal for the car would be mid 8-900whp, as I have another factory short block sitting on a stand that just needs to be built. I'm struggling searching through so many posts and threads and comparing graphs and seeing the gap in TVS mid-range and Whipple, but none have compared the newer Gen 4 Whipple and it's hard to find a direct comparison that is unbiased. I like the idea of having a new blower with a warranty, but also think the TVS would be like new once I get it back from Jokerz. With the cost of the Gen 4 so low right now, I'm looking at about $1000 more to get the Whipple, and I can try and sell the TVS to someone looking for one to port/rebuild if that is the better choice. Anyone have any advice or recommendations?