Backfires.... please help

[mytight95]

I think i have an intake gasket leak at the back of my manifold........Intake to block on the rear of the car.... Anyhow, could someone please list all the possible reasons for having a backfire, so i can start going down the list... my car also feels down on power could this be why? Can an intake leak cause power loss? Would too much fuel pressure cause this as well, or too little fuel pressure

all this has came around since the edelbrock intake install... Not related, but i have a noisy valvetrain, i am thinking my pushrods are too short and not letting me achieve full lift while causing the noise. In light of that can someone explain to me how to cure this (pedestal mount roller rockers)


trying to answer multiple questions with one thread instead of the multiple ones i would have to start..



jason

 

[4Jenna]

If the lower is leaking where it mates to the block you would also have a oil leak. Backfire with a loud pop is sometimes casue from a lean condition....hope this helps some.

 

[mytight95]

yeah it is coming out of the exhaust.... maybe i need to richen it up some.....i can tinker with it some tommorrow....


up the pressure some.... i am running a base fuel pressure of around 38# with the vacuum off......

OH yeah i do have the oil leak wheni romp it hard it gets on the exhaust and makes my car look like a hoopty...lol



jason