whats good compression for a 13b-re? and haltech question..
 

how much is a haltech e6a with harness worth? (no sensors)

and for the compression question...

i am about to buy a engine that has 3 peaks of 105... is this good?
what is considered good compression thanks

I dont know honestly on your first ?, but if you have a engine having 105psi peaks on front and rear rotors that is a pretty good engine and well with in spec.