I would say that most of the “real street” motors I’ve been involved with, that the owners are pretty happy with, would fall short of the 2.06hp/cfm.
Maybe my expectations are just low.
A 10:1 440 with ootb RPM heads and a small hyd roller cam....... how much “should” a motor like that make?
The ones I have tested have fallen short of that 2.06hp/cfm criteria....... yet seem to run quite well in the car.
At the lift of the cam, a set of TF240’s would be about 30-35cfm better.
Would you be expecting to see a 60-70hp improvement if you did nothing but swapped the heads(assuming the CR stayed the same)?
On my bench they’re
[email protected] lift...... so 640hp if you’re getting 2.06hp/ci.
I’m pretty confident a 10:1 446 with TF240’s and a low-230’s @.050 HR cam isn’t going to make 640hp on the dyno here.
But I think it would still be a very satisfying street combo.
