91 740 stalls while stopping and turning, 160K Regina.

[Matt's Volvo]

91 740 stalls while stopping and turning, 160K Regina.
New:

High pressure pump in tank fuel pump
sock filter
inline filter
fuel pressure regulator
plugs
rotor
distributor cap
plug wires.
Brake booster
air cleaner

Have cleaned throtle body
fixed vacume leaks
Checked and tigthtened ground straps
switched relays fan aux with radio supp

some times (not often hard start when cold) but the stall takes place cold or hot. Enging always restarts in one to 4 tries ..So maybe I will go back to owning BMWs I could at least get them running HELP!!