Raul I have 340 with 3310 holley love it Im a mechanic for 30yrs hated to try and rebuilt the TQ never any sucuss 3yrs ago had a bug up my ass for the TQ bought a 72 new one for 300 removed choke flap drilled squirters to 33 changed jets and rods runs just as good if not better than the holley call demon sizzlers he knows the TQ if need help call or email me they do run good when done right