Hello first post on here! (Been reading for a while, great info!)

I have a vintage Bob Jackson frame (steel of course). It has 126mm rear dropouts.

Firstly, All the wheels i currently have are 130mm. From reading around, (Sheldon etc) it looks like i can use my 130mm wheels no problem, would you agree?

Secondly, I've recently acquired a circa 1993 campag record groupset (8 speed rear derailleur). Will i be able to use this on a wheel build around a 130 mm hub or will i need to source a 126mm?

Sorry if these are dumb questions but relatively new to building up bikes and im just just trying to get my head around all this!

Thanks in advance.