[RICK LAKE]

Grubby John I think you really need to talk this over with Barry about your build. If you are running a top end Aluminum headed motor, iron block is not the way to go. You have 2 different materials that have both different strengths and most important, expansion rates. Almost every car built since the mid 80's has tryed this combo in both cars and truck, IT DOESN'T LAST. Head gaskets are rubbed until either outside leaks or internal leaks. Coolant in a motor is verybad. The combo you are looking at ,482 has some great things and questionable things too.
If you are going with hard abuse, a 4.125 crank in a 4.280 bore would be a good abuse fit for the car. You didn't say what trans or rearend gear is going into this car. Also are you going with outboard brakes? This motor above will make 500+ HP and have a safe 6,700 rpm limit with all the oiling extras done to the block. You are looking at a solid roller camshaft or lifters?
If your heart is set on a 482 motor you are also looking at a 500hp without any problem BUT a lower rpm limit. This motor will also make about 575-590FT of torque at a lower RPM. You have to remember, TORQUE moves the car not HP. The other thing is the higher the rpm range you run, the shorter the life of the motor. I run a 482 with a max 6,200 rpm chip in my MSD. The thing is to match the trans ratio's and rearend gearing to the motor and camshaft. Bigger is not always better. If you want to go for long cruises, you are also looking to have the motor about 500 rpms inside it's torque band. This way the motor is not lugging at cruise speeds. Look at some of the tranny threads on this issue. I have a 6 speed richmond overdrive trans with 3.31 gears. I can cruise with out any problem. The waste is first gear. 3.25, I never use it to takeoff or even race with. I am changing to a 2.87 first gear and .87 od with a 3.07 setup. I have too much torque, (if that is possible) and blow the tires up in 2,3 gears. A little change in the motor is coming.
Last note John I think Barry builts some great motors. There is a different between a dyno motor for engine masters and street motor you are looking to get 20-50k miles out of. Barry does build his engine masters for street useage. The stroker kit I got from him was just as he said and was perfect to install. Talk to him about an aluminum block, it's the better way to go. My shelby 452 got raced for 7 years and was still running fine until I needed more power. 3 years with the 482 motor and it just getting better.I am still using the same CSX#58 block. I run a hydro roller camshaft in the motor now with a 587-607 lift.