couple of ? about 347

somewhere around 280

Get some better cylinder heads like AFR 185's. Those GT40p's will be choking that engine.

a good combo for a 347 storker i think is well this is mine ... edlebrock rpm 2 intake, 185 cc AFRs,crane cam .544 lift,1.6 crane roller rockers, all the msd goodies smog pump removal, and with all this im running 11:1 compresion cause im planning to put a 150 shot of juice on it but without the nos i hope to make around 400hp and should be possible ive done lots of reaserach on this motor and to build this motor cost lots of money im deep into my wallet already but its worth its your better off 2 do it once then 2 or more times.also if u plan to do all this dont forget to upgrade your fuel delivery system (injectors fuel pump and rails and your cooling system will help keep the beast running cool.