So I have had my Z for about a year now and am finally deciding to start some engine work. So my question is for a 305 what would be some basic engine modifications that everyone should do to there 305? Its Tuned port Injection. Id prefer the cheaper solutions first but all will do. So anything that will add some power but will just be all around good for the engine! Thanks!

 

Basic bolt ons like k&n air n oil filters, NGK Sparkplugs, new aftermarket exhaust like Magnaflow or Flowmaster

 

Is yours automatic or 5sp ? You Could change the gears in the back

 

It already has K&N filters, brand new magnaflow exhaust just got it last week, and I just changed the spark plugs I didn't buy those but I bought expensive ones. New distributor cap, wires, rotor button. Small stuff like that but im looking for one step up from that. Its an auto.

 

Does it have the G92 code ?

 

No, I think that only came on the 5 speeds didnt it?

 

Nope, mines G92 and its automatic

 

hmm well mine does not then

 

What gear ratio do you have ?

 

Ya know I've not looked into it, its a stock rear end with posi, but I just got the car last year.

 

You should find out hopefully its the stock rear but if you have the G92 code then you probably have good gears but if you don't have G92 then you got the highway gears 2.73 not desirable for when acceleration is wanted.

 

I will check this weekend when I get home.