340 stroker build will this make our goal

In short no to your orig post in my opinion, 3450lbs will need an honest 557 on track hp (according to my numbers) to run 125mph with all the ancillaries (thats 600 dyno hp), and you'll be turning around 6700rpm+ at the traps depending on verter slip with 28's/4.30's. Look at B3422w5's post no.5, that gives you a good idea of what you'll need. Don't think its quite as easy as some make it out to be.