Ugh bought the one for 75 its in timing is way off now. Wish I had a timing light. But it works and hopefully it'll work for a while. I didn't havr the cash to buy a new one or I would've. Goal is to upgrade to obd1 but that requires more cash than I had. Wish I woulda checked the post earlier anti-poon but I needed it. Unfortunately I got the oil changed and they said my rear main was leaking I thought we changed that when I put the motor in but.....ugh always something