should i get the ford 347 short block for $2295 or should i just use my 86k mile block and get a 347 street fighter stroker kit for $1395. the kit comes with forged pistons and the short block doesnt. mustangs unlimited seels these both but im not sure what i should do cause for $900 more i can get the short block. are these short blocks any good? also does anyone know if that trick flow top end kit from summit will work with a 347 like this? thanks