questions about stuff?
 

ok so i am on this twin turbo high right now and am going to put twins on my iroc.
my questions are
(1)can someone explain or link me to a site that explains turbo specs like a/r, trim etc. so i can pick the right turbos?
or can somebody suggest turbos?
(2)i pretty sure i am going to run something out there with a t3 flange just because they are plentyful and seem to be less expensive.
what is a t3/t4 hybrid?is it better?


engine specs.
87 iroc
383
stock block(thinking about getting a 4 bolt main kit)
stock heads ported and polished
has stock tpi but have a holley stealth ram in the garage for it.
its about 10 to 1 compression so i will probably have to lower that.