Im new here and have a ?. i have a 95 z28 4L60E TRANSMISSION BBK Throttle Body , K&N cold air intake and a cat back just dont know what one lol sorry . what more can i do to get my z up to like 400 to 500hp. and what would a good Suspension setup be i dont have all that much money but do got some lol any thing you guys can tell me will help thanks

400 or 500HP at the rear wheels, or at the flywheel - huge difference?

Sorry 400 to 450 at the rear wheels

Good stock ported heads and matching cam will get you to 410wHP. You will need headers, larger injectors, large catback or duals, 52-58mm TB, cold air intake, reprogram. Figure about $3,500 min, and allow at least 50% additional funds for drivetrain and suspension upgrades.

Look at heads & cam offereings from Elliott Portworks and AI.

Big difference and approaches between 400 and 450whp.

if i can get some where in that range i would be happy

Fred hit it on the head then. A good heads/cam package plus bolt-ons on the stock bottom end will get you 400+. 450 will take some added displacement, larger cam, good flowing heads, ALL of the bolt-ons, and a great tune.

thank you guys for the help

ok guys i am going to go with the lt1-le1 heads from elliotts port works and the 224/230--.573/.568-112 lsa cam.should put me at a lil over 400hp at the wheels right..? now is there any thing i need to go with the kit i get from port works plz help thanks

LE1s with a mild cam through a stalled auto probably won't put you over 400hp. You're going to need more substantial heads and a more aggressive grind. Have you looked at AI's stuff as well (www.advancedinduction.com)? They are doing it on a more routine basis, but at a marginally higher cost.

Don't forget headers (don't see them listed), 1.6 rockers, timing chain, gaskets, etc.

do the 1.6 rockers come in the kit from port works do you know thanks

No they do not.

You're also going to need custom length pushrods as well.