A couple questions about supercharging a 440

I found the stamping number on the block and the casting number on the heads, it's a 1978 440 with a cast crank and 452 heads. Now a background on the car: it's in a 1967 barracuda that spent most of its life as a drag car. It has a 8 3/4" rear end with 4.11 gears and moser axle shafts, the transmission is a 727 with a manual valve body and some beefed up internals, though I'm not sure what parts. I currently have a small cam in it, .465/.488 with 294/303 and a 112 lsa. I put a weiand hi-ram on it with 2 600cfm holleys, and it is awesome. But my wife of all people gives me sh*t about having things sticking up that aren't on a blower lol and i see that as an excuse to supercharge it, but i don't want to pull the engine if i don't have to. So pistons and rods are as far as i plan to dig into it. If i can run it around 600 hp on pump gas i think I'd be most pleased20170501_073026.jpg 20170710_201809.jpg