seeing as this has turned into a discussion I have an opinion on i will speak.
The K-1 stuff has good value and make a decent rod.
Most people understand by now that low compression is what makes the turbo cars laggy, harder to build boost at launch and in general a much slower combination. Yes it helps if you are running pump gas but there are better ways to crutch the low octane fuels like timing and fuel map. These are things that can be changed when adding race gas, if you have low compression you are just plain fucked.
If you are going to run the x275 stuff get over the E-85, I know I love the stuff and it is dirt cheap but the will never allow it.
You might consider running in ultra street, they have added the class at milan and it will be alot more fun than the shark tank that X275 has turned into.
Well enough of my bored rambling, I have been sick for days and have nothing else to do but watch TV