needing 283 advice

[oldno3fan]

hello i have a 1964 chevy truck and need advice from the 283 experts i want to rebuild my 283 to get more power but not dragstrip power but more than stock
heres what i have
283 truck motor stock heads with cast iron 2 barrel intake with factory 2 in exhaust manifolds and single yes single exhaust
im wanting to add a cast 4 barrel intake and use a small edelbrock 4 barrel and i want to keep my centerdump manifolds i am going to put true duel exhaust and 36 in smittys glass packs but the internal stuff i dont know much about such as cam selection switching to a truck 305 head or double hump heads valve size ? compression? flat tops or dommed i want it to run off pump gas and i dont want a lumpy sound must be hydraulic not solid i just want it to have a smooth idle and 300+horses if possible dont want to bore it out much but be responsive when i floor it ....
if anyone here has a really good combo that they tried and worked please lmk or email me @ oldno3fan@adelphia.net
i was told by a friend of mine there was some 283 pros here