400 horsepower low compression 360
Here's some "old timer" guidelines for a very fast street only driver that's a pleasure to drive. (3.23 rear gears)
a maximum of 10 lbs. per cubic inch
a maximum of 10 lbs. per hp
9:1 minimum first gear torque multiplication
Maximum torque should higher than maximum HP
175 psi static compression if possible
cam duration less than .220
These are not my figures and certainly not carved in stone but seem to make good sense?
If you want to go very fast on the street, strong lo and mid rpm torque might be best...not hp