want to build new motor

I have a number matching 71 340 demon that I ordered in 1970 raced it for a while missed a shift and we all know what happened took the eng. out of the car and put in a 318-3 block 9.5:1c/r with all 340 parts heads cam ect. for a daily driver. want to put a new motor in now, I am thinking the 340 block with a stoker kit so it will look right from the out side have all the org. parts heads have been done to meet 1971 NHRA stock spec. car has 1.75 headers that i want to keep will be using car as a street rod with some trips to the local drag strips would like some in put from mopar guys thank you :evil2: