Part fits well. The slots machined for the small template have a smaller slot at the bottom to keep the screws from catching too much on the collar. Fittings for a high speed carb feel cheap, the nut is very flimsy and looks like it could come loose. Apart from these two shortcomings, the adapter is well made and fits as desired. Note. If using this adapter with an Autolite or Motorcraft 2100 or 2150 carburetor (Ford Cylinder 2) you will need an OEM Ford Gasket (Fel Pro 60716) to seal the vacuum ports on the bottom of the carburetor. https://www.amazon.com/dp/B000C2E5KW/ref=cm_sw_em_r_mt_dp_zXwrFbAVWFD9A