Car - ae86
motor - jdm bigport
use - street/hills
problem - none atm
occurs/started when -
personal situation - wanting to buy a head to port and polish and so on. So deciding wether to buy a smallport head or a bigport head.
How does a bigport run with a smallport head?
Power increase over bigport head or does the lower compression even it out?
Thanks
There's no difference in compression changes between bigport/smallport heads, it's the bottom end that does it.
And you really won't have any performance gains choosing one over the other. I would just use the head you have more accessories for (intake manifold, injectors, etc).