I have a 200 that came out of a 68 mustang. When I got it, it had a Holley 1904 that someone had drilled and tapped holes in the log to mount the carb. The bolt spacing was originally much wider than the 1904 mounts. Vacuum leaks were awful with this set up. I had a guy machine an adapter to fit the original manifold holes and fit the 1904. Still doesnt seem to want to run just right though.
Id like to change out carbs, but am having problems finding one that matches up with the original bolt spacing. Ive tried an autolite 1100, 1101, carter yf, and a holley 1940. None of them will line up with the bolt pattern on the manifold.
Ive also tried to source a factory spacer online that fits the original manifold bolt spacing. No luck there either. The ones Ive found have all been for the narrower spacing that fits the 1904 bolt pattern. Is my only option to have another spacer machined and hope I can run a new carb off of it?
Id like to change out carbs, but am having problems finding one that matches up with the original bolt spacing. Ive tried an autolite 1100, 1101, carter yf, and a holley 1940. None of them will line up with the bolt pattern on the manifold.
Ive also tried to source a factory spacer online that fits the original manifold bolt spacing. No luck there either. The ones Ive found have all been for the narrower spacing that fits the 1904 bolt pattern. Is my only option to have another spacer machined and hope I can run a new carb off of it?