ive swapped my 400 for a 455 in my 67 gs. for the stealth look i changed the valve covers to the "400-4" covers. i had been running the rebuilt 750 that was on the 400, but theres lots of talk about how buicks like more air. so im trying to put a 74 on the car but i need the bracket that throttle and switch pitch kickdown connect to on the carb. I am also missing the throttle return spring that is located at the rear of the engine near the firewall. Does anyone have these parts or are they common to other years as well and would i be able to findn them at a local auto store. . thanks
