But , on lap 147 , Gurney 's Ford too belched smoke , and he was out .
Gurney slipped into the lead , and by lap 131 of the 200 , had lapped every car with the exception of Foyt 's .
On lap 147 , Gurney 's Ford too belched smoke , and Gurney was out .
Gurney slipped into the lead , and by lap 131 of the 200 , had lapped every car with the exception of Foyt 's .