Hello all,



I am currently looking at racing in improved production car in nsw. I want to build a bridge port that is improved production legal, my qustion is if i had a 4 port that was bridge ported, and then had a 6 port that was also bridge ported, they run the same chassis, same injection, same ignition, same exhaust, etc,,,,, what engine would produce the bottom end? mid range? and top end? which engine would produce more torque/horsepower.



thankyou for taking the time to read,

Troy



Nepean Kerb King

for all your concrete kerbing and kwik kerb