I have a 94 cobra that's basically stock it got 320,xxx miles and counting I've had it since 210,000 miles roughly. I can't completely park it and take it apart and build a new engine, so found a 95 mustang gt engine 1 owner car ) (36 year old woman) got the block and crank honed up and according to the machinist its the best condition he's ever seen a mustang engine in after 180,xxx miles. But anyways. As we all know the 94-95 cobra are only rated at what like 275hp? Even though some say they made closer to 300? I need/want to rebuild another 5.0 for many reasons. 1. The new v6 mustangs make more hp than my cobra and I can't have high school kids driving a car mommy and daddy bought for them going faster than me! And 2. I live 50 miles from work and I do a lot of out of state traveling. So an all orignial 5.0 isn't gonna hold up much longer. I'm not afraid to spend money on this but I wanna ask you guys which direction should I take this build if I'm looking for a streetable high 300hp maybe around 400hp car? I have somewhat of an ideal what I want like some afr heads or twisted wedge. But what size? 165cc? 175? 185cc? Maybe go up to some 42lb injectors? E303 cam I heard those aren't to radical for everyday driving? As for the bottom end I may supercharge later. But I'm defnitely wanting to shoot nitrous. I have a bottle I planned on hooking up in my 92 awd talon tsi turbo but. I'm pretty sure 25lbs of boost is enough. So with forced induction or nitrous comes the responsibilty of getting a forged bottom end (and a good ecu tuning). I know the 87-92 mustang 5.0 have forged pistons what about push rods? And the crank? Like I said I don't mind going out and buying them brand new but if there's a chance to save money and not skimp out on parts then that's a win right? But if I get used pistons from an older 5.0 I won't beable to bore over to a 306. But moving along. Maybe a 70mm MAF. 70mm throttle body. And I don't really know what's a good aftermarket flowing intake. Maybe a typhoon intake? Beef up the ignition systen? Any help is appreciated.