So I just put a 305 tbi motor out of a 89 caprice in my 92 rs camaro. I got her all back together but the damn thing will not start, I checked for fuel and spark both of which im getting. I went over all my grounds and my entire engine harness, no problems there. I checked my firing order and dizzy, both are correct. Im lost any ideas are sure welcome.

 

Check the valve lash. If you tightened the rockers to tight you will just sit there spinning the motor and killing the battery. This happened to me on my first 350 build.

 

When you turn the key to the ON position, what's your 'Security' light doing? I'm thinking you may have a VATS issue, if you only swapped engines without any major internal work.

EDIT: Do you have access to a noid light? If so, plug that on one of your injectors and try to start it. What's the light do?

 

Sorry guys I should have updated this a long time ago. It turned out to be the oil/fuel shut off switch was different on the caprice that i got the engine from. I switched it out for the original and she fired right up. Thanks for your thoughts though.