Big horsepower 318 builds

Old thread but spot on for my plans. I have a 56 Dodge pickup I'll mount on my 2001 Dakota chassis (9.25" rear axle, posi 3:55). Dumping the high miles (203K) but still running good 4.7V8 for a running complete low miles factory rebuild 5.2 Magnum I bought for $600. Then I bought a 8HP-70 trans from a 2016 Challenger with the driveshaft and TC for $400. I plan to mod the 5.2 with some Keith Black pistons, deck the block to near flush TDC pistons for about 10:1 compression, torquey cam, electronic/adjustable distributor, headers, etc. Should be a fun daily driver and may even get 20+ mpg on the highway. I'll do the kegger mods for better breathing. But also thinking of ditching the kegger intake and doing the Hughes intake for the EFI system. I want daily driveability and decent power, but some fun also.