I read.. I'll have to find it. But with a vtec head it's a ridiculous amount of blow by when turboing it. And yes I am looking to get low 12's with this car. But of course I'm going to shoot for 11's. Anyway, my plan was to use nitrous as well. I'll have to find out if there is a reason I was told to use the LS head over the B20 head. That was the least of my questions. But I'd be happy if someone could answer it Good luck with your project! And I appreciate the info.