I guess since its 68 valve covers I will keep it looking like a 68 engine. As much as I would like to make it look like a 75 engine( and I do plan on it in the future I'm gonna pick up some 75 valve cover eventually) I'm not to concerned about it being year correct down to the final detail as long as it appears original I'm ok with that. I dont think to many people out there when I pop the hood is gonna say oh those are 68 valve covers on a 75! If they do I'd be impressed Haha. I just want it to look good tbh. The valve covers are 68 340 the intake is 71 340 and the breather is a 72 318 and the engine is a 77 360 hahaha yea she's been put together like Johnny Cash would have done it!