My second boss' son had one of those (Oshawa plant) as a project car 30 years ago. First generation Chevy Nova. Those 250s were a good engine. Mostly this era and before suffering from actually worn out valves and valve seats if it's been run on Unleaded fuel. Also worn out valve drive gears or chain and it's "drifting" so it's almost impossible to set it accurate as it's constantly wandering in and out. Going to need head rework new hardened seats and valve train parts then it's going to be reliable again. Don't ignore the transmission either though they were pretty solid then.
Get a vacuum /fuel pump tester gauge working. Connect it and watch the needle per the instructions. It will tell you a lot of what is going on with the carb and the engine internally.
My second boss' son had one of those (Oshawa plant) as a project car 30 years ago. First generation Chevy Nova.
Those 250s were a good engine.
Mostly this era and before suffering from actually worn out valves and valve seats if it's been run on Unleaded fuel.
Also worn out valve drive gears or chain and it's "drifting" so it's almost impossible to set it accurate as it's constantly wandering in and out.
Going to need head rework new hardened seats and valve train parts then it's going to be reliable again.
Don't ignore the transmission either though they were pretty solid then.
Get a vacuum /fuel pump tester gauge working. Connect it and watch the needle per the instructions. It will tell you a lot of what is going on with the carb and the engine internally.
my question is ? is it for sale or trade 😎 plz let me know
Put a V8 in it not hard to replace