"The DOHC head is the real centerpiece of this motor. It's design is almost identical to the DOHC 'B' heads except for everthing being larger. The ports are much larger than 1.8 and the valves are also larger than the 1.8. The stock FE3 head flows 234 cfm intake and 194 cfm exhaust at 28 inches water (for comparison a 1.6 head is about 170'ish intake and a 1.8 head is about 210'ish intake). The factory redline is 7000 rpm with a 7300 fuel cutoff (same as the Miata)"
Taken from
http://members.aol.com/solomiata/FE3.html
What i wanna know from the guys making 600+hp is : how the hell do u get traction ???? im not making near that yet but cant get the power to the ground