408000
If that swell diagram in the last msg does not help, try this :
Once, long ago i had the same problem as you with a 1979 ford pickup. I cruised the AUTO ROW in my town and started looking for a truck like mine.
I had to go to 3 lots before the sales mgr would let me pop the hood and with my truck parked at the curb, I popped my hood and pulled out my supply of hoses and started plumbing to match his truck.
The Guy was swell about it! The first 2 lots thought it too out of the ordinary to allow me to do it, suspecting i would guess, that i was up to something like stealing a smog sensor or something.
Anyway,Me and the guy who was a pal are now pals. I bought my latest pickup from him. a 1994 Ford F250 diesel to pull my jeep up the mountains with.
That's how I did it...