i have a 97 lt-1 trans am . after its been sitting in my garage overnite. its a bastard to start. i try to start it , and all it does is turn over but not fire . the second time i try it fires up and with a slightly rough idle. the car has a cai , slp elbow and air foil and 255 lph fuel pump . is it the battery not having enough cranking power , or am i running to rich or lean . the battery is the standard ac delco unit . any help would be appreciated.

have you done plugs and wires lately? or fuel filter

sounds like the fuel press is dropping off when it sits.

the plugs were changed with the wires. i have the msd 8.5 superconductor wires with ac delco plugs . the car has been driven about 20000kms since that was done.