I have a garage find 66 fury III its 100% stock I have done a few things to spice it up like putting new wheels and cleaning up the poly 318 but as it runs great it is quite gutless so I'm on the fence on if I should swap a 360 in because it's pretty much bolt right in or should I go for big block I have a 383 from my grandpa's 72 roadrunner but seems like it would be a lot more work... Any advice
