I'm not afraid to admit, This one confuses me and I've been an auto tech over 11 years. My friend has a 1965 ford mustang with 289ci engine, nothing stock about it though, Edelbrock intake and carb, aftermarket exhaust, Elec ignition etc etc ,all that stuff- I havint been out to look at it yet but he says that when he turns right the engine stalls. Happens 9 times out of ten. ........ .... Vacuum?? ........Pinched fuel line?? ..... Yea I'll admit, I'm stumped.