What was the last year for the slant?

Hands down 1975 had the best prodution cam .....if your going to use it all stock .........plus it had hardened valve seats ......and if you look at the horsepower ratings...they seem low....remember that past 72or 73 horsepower ratings were measured in SAE Net ....meaning that was horsepower at the rear wheel.....

the earlier ones had higher horsepower ratings but it was gross horsepower ...meaning the engine on a stand .....not accounting for the power loss through the drivetrain and factors from the car.

For a bunch of reasons i call 1975 my pick

i always avoid early slantys .....in general the 70s improved a lot stuff stuff in terms of reliabitly. and on a slanty i would argue that they never lost much if any horsepower from the number manipulation .....strange how the slanty has historically stayed very close to the same compression ratio from beginning to end.