Right Tom, the advertised duration is 270 intake and 280 exhaust.
my notes say I changed the springs
crane springs 80lbs closed 215lbs open
intake opening .441"
exhaust opening .462"
as the cam change was 25 years ago, I remember only that it is a crane cam, so the springs I probably bought with the cam.

The car has a space frame of 1" square tube, a VW type 3 front axle and vw steering but its steering wheel is moved into the center with a #50 chain and sprockets.
The instruments, engine and drivetrain is datsun 1200.
The car weighs 1100lbs (wet). A panhard bar and a 4 shortened Dodge pickup tie rods locate the rear axle. I put overload springs over scout shocks to support the rear of this car.
I made a fiberglass body enclosing the engine and frame.

After it was completed, I found that I'd made a formula junior car (except that the engine was slightly too large to be competition-legal).

Thanks for the compliment.