If I recall, DB had suggested me to buy the 9136 part number (summit racing, do a web search) when I was considering replacing my problematic Rochester. Then, I realized that my intake manifold is from a late 70's engine with a bolt pattern not compatible to the "original" Carter. Cost was $275 if I recall. Hope that helps. D^2 Quoting Bob Sykes <bobsykes@xxxxxxxxxxxxx>: > Sorry to ignite the Holley debate again! Could one of you Carter users > tell me what model number you are using? Thanks! > > Bob Sykes > > 68 Crown > > > >