i believe twin 40's are good to about 165bhp? they were gonna be used on a different engine so il either use them or sell them.

as to a zetec, the reason i didnt put one in is they are expensive to tune and the out the box power is poor. a 2.0 mondy is only 135bhp even if its a tadge lighter.

from dyno runs iv seen 156 was the highest credible reading from exhaust/filter/chip combos and i believe cams (still learning about these) only help you decide where you want the peak power not give you more?

upping compression could be an option as could home made throttle bodies. has anyone/or does anyone know someone whos running one of these on carbs?