[Brent67CAT]

I am new to Pontiacs as this is my first, The book I have tells me what I have is a 1967 Catalina 4DR HT with a 400 V8 rochester 2bbl. with 143 heads block code B227 86133 #419571 YC, single exh. with distributor # 1111253 and cam # 9779254(u) with 10.5:1 CR and a TH400. I have replaced the wires,plugs,cap & rotor,fuel filter and battery so far. It has from the previous owner 89-92 Oct. The MAIN problem I am having is that the auto choke is closing up when the engine gets warm, I go about 2-3 blocks and then it stalls, the timing is set according to the book at the mark at 6 degs BTDC the RPM's I'm getting are aroung 1350-1500 in idle and 600-800 in drive, when put in drive or reverse the engine stalls sometimes and the choke is closed.PLEASE HELP!!! As this is my ( or should I say NEED it to be ) my daily driver. Thanks Brent