fully rebuilt ka with a lack of power

[cronux]

okay, i recently finished the rebuild on my KA, and it seems to have considerable less power now then before it blew.

the rebuild included
new pistons,
new rods,
new rod bearings,
full head job
block line bored
crank ground
new main bearings
full gasket kit
new oil pump/front cover
and all new hardware.

i've broken it properly (dont want to get into a "proper break in" arguement)
and i have a compression of 180+ in all of my cylinders

basically, as soon as it warms up, i have a pretty significant decrease in power.

new spark plugs, new dizzy cap/rotor, could it be spark plug wires?

they arent that old, but i have had a problem with spark plug wires in the past, they were cracked and when the engine warmed up, it would fire through the crack and not to the spark plug.

but it doesnt feel like its running on 3 cylinders, it just feels... a little weak.

im pretty sure i dont have a vaccuum leak, because i only have 4 vacuum hoses, and they are all on tight (PCV, IACV, brake booster and FPR)

any ideas here guys?

and if you think its spark plug wires, what brand do you reccommend (i will never buy bosch wires ever again)