double carburettor +eg3

tomorrow, I was approached yesterday by one in the disco who had seen my car and asked what kind of motorization I had. I just said 75ps eg3. now the plowing, he said he had on his eg3 a -double carburettor- also installed a mohrauspuffanlage +fächerbürfer as well as head planned to add the suction bridge polished/extended and another camshaft installed result 125ps! he himself works at honda in köln and thanks to colleagues has also registered everything come now my question double carburetor where do I get it? have you ever heard of it? and how about the camshaft from where do I get one for the eg3? your opinion(please is not too expensive that doesn’t apply) I’m interested in whether it can be realized