How much horsepower should I expect?

Since it's a street car, I disagree with going with a 950HP. I have 2 Eddy 650 carbs that I've never had problems with (1 on my barracuda, and the other was on the 318 in my duster before I swapped it out.) I have no experience with the Eddy 750, but if it's like the 650, it should work good on a street car if that's what you already have. If you don't already have the carb, get a Holley. I stayed away from Holley for years, but realized that they aren't as difficult as I thought before. The rods should be good for what you're doing. Should be a good torquey street motor...probably low to mid 400's in HP and high 400's in TQ.