how much money to go ls vtec

i got deal at this place called over rev they said that theyll do the ls vtec for me for $1000 wityha l new parts and they said there going to change the stuff out for me they said theell put new head gasketts and everything they get all the stuff form the honda dealer and he said that he had proof that they built there ls vtecs good they never had any one come back to themyet saying they had a problem but he said you will have a little probellms sometimes but not as big as people say they do so what do you guys thin is it too good to be true