[fliprayzin240sx]

As far as breaking it in, take it easy the first 100 miles, keep the revs below 3k if possible, change the oil. Do the same thing at 500 miles and then you should be good to go. Use only regular oil during the break-in. After the 500 miles, you can start running synthetic.

As far as the car, you can't just slap injectors on without a tune...car will run like shit. Run an S15 turbo, its the cheapest option to get you to 300. Slap the 550's on, Z32 Maf and get the thing tuned. Cams, you dont need 270s, too aggressive for what you're trying to do with the car. Get some drop in cams, Tomei poncams.

Also, stop saying your engine is bullet proof. There is no such thing. All it takes is a shitty oil pump, shitty fuel pump, bad tune and you can kiss your bullet proof engine good bye.