nicogen,
I remember that your Cobra was on eBay around 2010-2011. It was the inspiration for putting a Twin Paxton in my Kirkham
without the Super Snake hood (as I'm not a big fan). Do you have any of the old Twin Paxton running gear? What's in it now? Details, please!
Since we now know the chassis number (KMP051), we can see what the SAAC Registry says about it. I can check when I get home (unless someone else wants to chime in).
There's a member here named 'AGGRESSOR' (Geary) who has a beautiful Twin Paxton Super Snake, and he has more miles on it than the rest of us combined. He's a wealth of knowledge and a real good guy. Since what you want is more up his alley, he's be best guy for long term advice (I've had trouble reaching him lately, though, If anyone knows anything, please advise). My engine is a big inch, more aggressive cam, dual inline intake and SN-93's vs SN-60's, so my advice wouldn't be your best fit.
Craig Conley of Paradise wheels in San Marcos, CA is the vintage Paxton man
Paradise Wheels - Vintage Shelby American Products. He has everything you need to have your chosen builder do the job. He'll have a lot to say regarding compression ratio, timing and carbs. Listen.
Word of caution: Is this your first Cobra? You may have plenty of experience with fast cars but Cobras are different. And high powered Cobras even more so. I would drive the car "as is" for quite a while and get to know the car well because once you do make the change, you'll be starting over. It's a commitment to keep these engines happy, not to mention yourself. That's probably why it was
uninstalled in the first place
I'm curious to know your mileage (and how much of that was on the Twin Paxton - you may never know
). You have your work cut out for you. Depending on the level of accuracy you desire for your replica, you'll probably want to visit CSX3015.
Have fun and enjoy the ride!
PS - Beware of advice from folks who have never owned a Twin Paxton. There's a running joke that Geary and I have regarding "experts". When you embark on your journey, we'll let you in on it
Good Luck!