building a 451, need cam help

You don't have to worry about "streetable" with a hydraulic roller. They're all streetable because the spring pressures have to be lower. Just my opinion but I'd pass on anything hydraulic. Since you have them and want to run them - I have my doubts as to whether the 292HR will make those numbers. I would take the flow test numbers and rest of your info and call Bullet for a custom grind. I'd like to see another 15-20° duration @ .050 and more lift.