I’ve always heard and thought of that particular cam as the upgraded 340 cam since it holds close to the stock valve lift but just has increased duration and by good bit. Lift is the only close area that the cam is in. The LSA is a 114 vs 110 and the duration picks up for an extra 13*’s @.050.
I needed a new motor and got a 340 from a wrecked car with low miles. Stuck one in, all power stuff on it. Power brakes, steering, A/C auto with stock 340 Dayco converter, in 727 with 323 gears ran very well.
And I agree was one step up from stock 340.
I had a weekend place in South Miss. And lived in New Orleans area. Car ran fine. The 276 were swapped at times when used it 100 percent just to travel back and forth there.
