glennxx1

my little brother has a 91 z28 auto 350 TPI, rebuilt, paxton bolt on, Z rated, susp. pac. i have larger fuel rails im wonderin how much better they will put me? i raced a 94 T/A w/ 400 rwh and Nitrous, (400 b4 he sprays) i killed him all motor then he sprayed and got like...20 car links or so, but he got me off the line bc i spun so much,, but im wondering what si their left to do to make it faster? has 6al ignition, exhaust, no clue if its cat back or what the heck it is, i dont no if it has headers or stock exhaust mani's umm...what else is their to do?

Drkhrse89

No offense but that was maybe the most difficult post that I have ever read. The only thing that I got out of that was what else can he do. We are going to need more info that what you gave us. Like what type of suspension stuff has he done. Does he have LCA's w/ brackets, SFC, STB, Torque arm, lowering springs, Panhard rod, what size tires does he have? What else has he done to the motor? If he doesnt have headers back then I would say do that first. Also make sure he has enough fuel going to the motor maybe a better fuel pump and an AFPR. So better heads with a nice cam and the list could go on and on and on. Just look at some of the build up people here have done.

glennxx1

he has susp. kit, dunno what kind or nothin was on tehir when we got it, it is lowered abuot a inch, it was rebuilt by some1? i dont know who, all was done when we bought it , so i have no clue, 245's are on it (50/16) paxton aint pushin but 4 or 6...not much need new belt or somethin, www.geocities.com/glennxx1 click on linke that says "temp car" ne way no clue if it was rebuilt to stock or rebuilt w/ cam pistons or what, i imagine it has forged pistons and good rods but i have no clue

Chris Ja

You can't tell anything from the pics. If you take a pic with the hood up we may be ablt to tell you if it has a different induction system or headers. The 91 I think has the d port alumm Vette heads which is a plus. That some engine pics and post them. Also take some pics of the rear suspension. I would install a set of AFR 210 comp heads and a supercharger cam. If it doesn't have headers and a free flowing cat back i would do that. First I would call the guy you purchased the Z from and see what he had done.
What are you doing to the 78 Vette? I used to have a 77 and a 79 with the L82 engine.