Sr wont start????

[cubbies1031]

i got the s14 sr20det i have been swapping to run this mornin and had it started about 3 times. made me extremely pleased. but now when i try to start it its just cranking over and not hitting at all. plugs are still good and its getting spark. fuel is good as well. im thinking a ground somewhere on the chassis that could be doing this but i have no idea where it could be. do you have any idea where it could be or if this is the problem? someone please help its killin me

[cubbies1031]

Somebody please help...is this maybe my cas going bad???

[Banana_Cute]

Could be bad fuel pump.

My car was acting up before it finally gave up.

I changed all electric and spark to new and better and still nothing, until i changed the fuel pump. It was pumping and priming, but not enough fuel to start it.

[cubbies1031]

its got correct fuel pressure and a new walbro 255 in it i know thats not the problem
like i said correct spark, fuel, and timing. could the cas just be going out or is it a ground guys? i really really need the help