Performance 101, what goes in must come back out... Budget will dictate allot of the build but here's a minimum guideline, how I build most of my performance projects... good camshaft Lunati, Mopar Performance, Crane, Comp etc. {contact them tell them what other parts are going into your build & what you expect out of it}, adjt. rockers & proper length/style push-rods & valve-train components {full kit if necessary, might be ok with the RPM heads springs, retainers & locks} to fit your specific needs... a proper torque converter to fit the cam & gears, your style of driving or what it will be used for... good flowing cylinder heads {IMHFO the RPM's are a great choice}... good free flowing exhaust system, preferably with good mid length headers 1-7/8" is more than adequate, it will really wake it up... a K&N Filter element... a hotter ignition & hotter coil {like Chrysler Electronic Ignition & with a MP Chrome ICU Control box & MSD Blaster 2 coil}, with ultra-low resistance spark plug wires, to fire the plugs well... a good quality Aluminum 4bbl intake, Aluminum dual plane if it's mainly going to be a street car with an occasional trip down the track, a Edelbrock Performer RPM is all around good choice {you may need to use a drop base air cleaner to clear the hood}... a good 4bbl carb properly sized & tuned for your build, like a 750cfm-850cfm would do the job well, I personally prefer the Holley type carbs myself {Quickfuel is my favorite brand they are extremely tunable}... keep your compression around 10:1 flat tops with near zero deck will get you there, to be safe you can run most any pump fuel that way, still easily make 500hp, run 91 octane with out issues... a good cooling system, including properly sized/style of radiator with a shroud & quality water pump... upgraded the fuel pump & use a 3/8" fuel sending unit & 3/8" {or #6AN lines minimum}, a good free flowing fuel filter before the pump & before the carb... {I also personally like a bypass style regulator, with a return line back to the fuel tank, but a regular fuel regulator will do too}... some mild head porting wouldn't hurt either get the best bang for your buck... good sealing rings & great machine work from a competent machinist, use quality hardware nuts bolt studs, not original cheap crap if you want it to live, also good gaskets, don't buy the cheapest crap out there etc.... also there are a multitude of books on how to tune & especially build a BB MoPar... I would highly suggest you buy a couple of books, like the Factory Service Manual, for you year make & model of car & any of the many "How to build a BB MoPar" books out there... there's allot more to a car build than just the engine, especially if your building a 500hp monster, everything need to be beefed up some, including the trans. if you want stuff to survive/live... That should give you a decent start, good luck what ever you decide...
