I reckon it's for a 2.25p. All the 32/34 DMTLs are identical mechanically it's the jet and emulsion tube sizes that vary, so just look at the jet size and compare them with the scan from the haynes manual below From the parts manual Weber 32/34 DMTL ETC6350 to 17H08822C ETC7144 From...

Most likely you have an aftermarket electronic iginition fitted. Does it look like this ? ::: Autocar Electrical Equipment ::: Otherwise race the wires back from the dizzy to a control box to identify the manufacturer