I wonder how accurate the published numbers are? I didn't know the 5.9 cam was ground on a 109lsa,the 5.2 with a 113lsa sounds right. I'm guessing it's like most MP cam specs,all over the place and rarley match any published info.LOL Yes the 5.9 stock with a rpm air gap or the knockoff and a set of headers should make the 300hp. Add a better cam and you can pick up plenty without giving up drivability. I helped a friend of mine with a cam swap and a set of R/T heads that I spent 1 hr with,makes 340hp at the tires and runs [Email]12.50@107mph[/Email] in a Dakota.In a 3100lb Abody with 4.10s it should find the 11's . No "quench" and runs fine on 87octane fuel.It's a 1996 engine I picked up out of a junkyard in 2001 that has never been touched.It will get a real set of headers and we'll ditch the single exhaust in the next phase.