Did any of you horsepower calculator guys ever use this

you’ve totally lost me.

1.4cfm...... of what?
Carb flow? Head flow?
Does the number of cylinders come into play?

So take that 616 hp the other formula came out with and times it by 1.4 cfm
1.4 cfm x 616 hp = 862 cfm

Click to expand...

The thing is..... on the actual dyno, the motor didn’t make 616hp...... it made 694hp.