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Message: <blockquote data-quote="r3dn3ck" data-source="post: 259053" data-attributes="member: 9214">a 400rwhp 2v just isn't really possible as a street car so a 4v would be more streetable by default if the magic 400rwhp number is a mandate. If you do look at the tq curve before the hp curve you'll be in a better position to estimate the performance. Stock cams won't get you to 400rwhp on a 4v. We know that or you'd see 400hp ratings out of the box. Figure on a set of custom grinds or just grab any old set of stage 2 4v cams. I think 2v is much easier and cheaper to do for a 2v car, 4v for a 4v car. Either trim is perfectly streetable but the 2v takes a little more throttle discipline down at low rpm (it's pretty easy to ROAST the tires with either but the 2v has more low end grunt).I'm pretty sure I'll be deep into the 12's as it sits and nearing 11's on street tires after the intake and header upgrade, so adding a small shot of nitrous should dip me into high 11's if I can drive it as it is. Remember, my setup isn't even done yet and it's already handing asses to WS6 drivers (killed one a couple nights ago from a dig). Adding more power at this point is just finishing what I had planned and not totally for the need of more ... there's no need for more power than it has now on the street.Ported heads, good cams with 230deg duration and a nice free flowing intake like the FR500 or 01 Cobra intake should be really neato. I thought heavily about starting with a 4v but I decided to start 2v and if that just couldn't make me happy I'd do the 4v. I'm pretty demanding and really... this 2v 335cid is plenty strong for me. Last night on the way home I did a launch from a light and after it finally hooked up and started moving, I shifted to second and it hooked till it hit about 45mph, then the rear end lost its hold on the pavement and spun HARD again. This isn't barking the tires with a power shift.. this is smokin' the hides from flooring it at 45mph. It breaks traction on the 2-3 shift pretty hard but at least it grabs hol't after the initial spin and gets to moving.</blockquote>