68 Cuda 383 vs a 360

It's funny you mention that, because the big blocks are physically easier to change plugs on in an A body. @abodyjoe will attest to that as well.

I found most things easier to do on my big block abodies. Those top trans bolts much easier, timing and dist work is much easier, plugs some easier some not. Hard to beat small block tti headers for plug access. That being said my big blocks with pro part headers weren't bad at all to get to.