In need of an education..340 vs 360.

If you don't want to spend a lot of money just freshen up the 340, if it even needs it , clean up he heads , stick in a cam and have fun . If you want to try and be the ""fastest "" on the block build up the 360 .
Mhat I did , since I have 3 340's is keep the numbers matching in the garage , one I stuck 10.5 mahle coated pistons , cam , not sure which one is in it now , cleaned up the heads and ipso presto 413 hp 398 torque . Not sure what Ill do with the 3rd .
Seeing as you have the 340 it will not take much to get 400+ hp , not sure what you'll have to spend to get the 360 up there .
But people here have a hard on for the 360 , either way have fun with what you build