Time Slip Identification ?

Can anyone positively id this timeslip? My buddy found it in his car and doesnt remember what track it is from. The saddest part is he obviously race there alot and he is not old enough to blame age.

 

i would guess indianapolis raceway park

 

Hence the IRP

 

Could be Irwindale then. What year did Irwindale go to 1/8th mile? That is a 1/4 mile slip obviously.

 

IRP is indianapolis raceway park.

 

Can he remember if he's ever been racing outside California?

 

California, Arizona and Nevada. This has to be about 1975-85. He just found these above the visor of the car last week. They have been there since they handed them to him. He just grab them and showed them to me like it was no big deal. Hand written with no reaction or 60' or anything.

 

The REAL Irwindale 1/4 mile track ran from 1965 to 1977.
The New Irwindale 1/8 mile track opened I think in 2000

 

Well then, that lets Indianapolis Raceway Park out of the hunt.

 

He hasn't flipped the visor down in 20/30 years???????

 

God honest truth! Hasnt much clean out the interior or washed the exterior in that time either. It is not a daily driver or anything anymore and he is not the neatest person you will ever meet. Great trans builder and machinist though.