I am needing to know the specs for the stock camshaft that Buick put in the 83 t-types. I had a machine shop rebuild my 231 and asked him if he could put a cam in that was a little bit bigger than stock but would still work with the turbo and computer. He put in a comp cams 268H that has .469 lift on the intake and exhaust. The car runs terrible and dies as soon as I put it in gear. This cam has got to be a lot bigger than stock!!!