# Local Cobra owners... **URL:** \ **Category:** Shift518 Automotive\ **Created:** [July 9, 2009, 6:22am UTC](https://forums.speedlife.net/t/local-cobra-owners/245315 "2009-07-09T06:22:06Z")\ **Posts on this page:** 1\ **Showing post:** 32
**Author:** ![SSmokinn\_SS](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@SSmokinn\_SS](https://forums.speedlife.net/u/SSmokinn_SS)\ **Post date:** [July 10, 2009, 5:43am UTC](https://forums.speedlife.net/t/local-cobra-owners/245315/32 "2009-07-10T05:43:43Z")
> [@Guitar Hero II....Part 2. FRIDAY NIGHT!](https://forums.speedlife.net/t/guitar-hero-ii-part-2-friday-night/20284/36): > > hahhahahahahahah yah ok, but it made 504 @ synapes, everyone else says his dyno reads low, now all the sudden w/ 20 less its MUCH faster??? LOL, what a joke! > > And Wayne, i did a pulley swap on a new gt500 in my garage w/ a regular 3 jaw puller, it was on there, let me tell yah but w/ a breaker bar and the pulley it slid right off. it made 504 at synapse in 40\* weather… yesterday his car was dynoed in 84\* weather…and that was after 9 pulls…BIG difference when its hot out and the blower is heat soaked. FYI, He was melting plugs on Howards tune as well, you might want to check into that 😉 --- _[View the full topic](https://forums.speedlife.net/t/local-cobra-owners/245315)._