help! 65' v-dub gas line troubles!!!

[krouchin-v-dub]

ok, here goes!!! i have a 65' bug, and the dern gas line is stopped up. ive tried blowing it out, and everything you can imagine!!! so i think it might have to be replaced. is this a big project cause it sure does look like it. if anyone knows any tips please let me know!!!!! thanx!!