I'm running a King Cobra on my T5 right now, but I only power shifted once between 3-4 and it smoked the clutch up. I can power shift between 1-2 and it just spins the tires. Running it through a T5 (A5) with 500 RWHP. Once it's done, going with a Spec 2+.
I had Ram HDT metallic, but it had a tendency to break a few parts here or there. But not often. A little heavy on the pedal but not to bad. I have also ran a Ram organic and it actually held up pretty good, and won a 1000$ No Box race late last year with an syncro'd Astro A-5 behind it. Have also ran the the Mcleod dual friction Street Extreme clutch and it does very well. Light on the pedal but holds. Don't have a whole lot of knowledge on that one but really fun to drive on the street with. Not sure how it would hold up with slicks in the long run . The car I drove with those combos were a NA 347 that was running high 10.60's and 70's. I actually picked up with the Ram organic. Due to a little starting line slippage. I kinda like that one. And it looked fine at the end of the year, after about 50 runs. The Mcleod or the Ram will be behind a 363 this year after I get the motor issues sorted out. I'm kinda expecting them to both hold up just fine with the knowledge I have with them, although limited knowledge with the Mcleod. Pretty much most of these premium clutches excel what we were running 25 years ago with big block cars.
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