Ok, I'm new to honda as this is my first and I have a few questions about my car. It's a 91 ef hatch with a d16z6 vtec. My first question is what is a stock d16z6 redline? My second is that when I bought the car the guy said it had a p jun chiped ecu but it hits a revlimiter at 6k so i'm thinking thats bs but wanting your opinion and its got a header and exhuast but do any of you have any opinions on mods that are good for the d series cams, cam gears, ext