I have a 91 hatch with a dohc zc, and on that zc I have a port and polish head,with valve springs, bottom end has blockguards and sleeves and custom pistons and the basic bolt ons. Is it possible for me to boost, if it is, how much can I boost? What do you think I would hit in the track from your guess boosting enough where I won't blow anything. The motor by itself hits low 14's my fastest with street tires.I just wanted to be in the 13's I want to know to if I have to lower the compression and how? Is it possible for me to go turbo nitrous cuz I have a nitrous system with a 50 shot or 70 shot either one?

 

what is a turbo? why do want one?

 

O boy you need to learn a little before you start posting, first off you need to know whats in your engine. Block gaurds ( hopefuly you only have one) do not go hand in hand with aftermarket sleeves. Aftermarket pistons, could be anything/any compression. sounds like you got your ---- mixed up or somebody sold you something and made some ---- up to suck the money from you.