what would it take to make 450/500hp

earthmover said
yea I'm just going to make the best of what I have now ....I may buy a 4'' crank and some piston later on and use hte rods I have now.....

Now your talking stroke it..my little 416 cranks out 520 h.p. with only a 533/552 cam,and thats at only 6600 rpms..has gone 11.02 in my '70 duster,will be in the 10's when i change over to 4.30's this offseason...