Can anyone tell me what inlet manifold fits to attach a carb from a pinto engine?

I may be wrong but NONE.

custom job that

unless you mean webber twin 40/45's .You can get them on ebay/burtons/demon tweakes ect

I read somewhere that a Rover (!!!) manifold fits with slight modification and that allows a twin choke DGAS Weber to be fitted. Have a word with Dave (?) at RetroFord near Corby/Kettereing. I believe he has already done this.

Found his web site http://www.retroford.co.uk/index.html