nosmakesmelaugh

ive got a 99 ls1 firebird and i bought the car put heads on it got it all back together and now it wont idle revs up but runs a little rough and wont idle n e advice could it be fuel injector or?????

JasonSS2000

iTrader: (1)

look for a vacuum leak...check the connections on the rear of the intake manifold. Also, make sure you did not displace an o-ring on the intake when you slide it in. You state you put heads on....were they stock? Did you do a cam? If not stock heads/cam you may have the wrong length pushrods. That is the last thing you check for is proper pre-load & valvetrain geometry.

Need more details on your build.

nosmakesmelaugh

the guy i got it from put the heads on and for got to put the guides on and bent all pushrods and i replaced them all then fired it up and it wont run right could it be a bent valve or???

00FirebirdaREV

iTrader: (3)

+1 ^^^^