sorry to replay so late:
Stroking....increasing displacement by making the stroke longer. It requires a new crank, rods and pistons. if its done right you wont change your copression. EGT´s run 9:1....that´s okay for a turbo. Most turbo motors are 8:1 or around that. So, with 9:1 you´ll get more bang for your pound (psi). Go much higher then 9:1 and you wont beable to run as much boost.
EGT stock internals are forged. (lucky us) Many of the turbo guys run 10psi easily. I´m aiming for 15psi on race gas 8-10psi around town.
Fresh rebuild can help, but if your going to rebuild remember to do the extra work on the head.
On the head switch to sodium exhaust valves. They wont melt under the heat from boost. High quality (felpro) valve seals are a good idea. New springs so you can get those valves moving at the speed of light. Overall just making sure the head is cleaned up is good idea too.
if you want to go all motor without shortcuts of N2O or boost...you want higher compression and stroke and bore the motor. cost of motor work would be around 7k probably.
