Help!!! Wont Run...

[stroked96]

hey whats up i got problem i got a 96 camaro i brought with a stroker motor built but not installed. i installed it and hooked everything up. there was no knock sensor so i put one in. also the crank sensor and plug was missing so i installed a new plug and put the sensor in and its displaying codesi P0335 Crankshaft Position Sensor A Circuit Malfunction and P0336 Crankshaft Position Sensor A Circuit Range/Performance. the crank sensor plug wires i believe are correct the middle one was correct and when the code came up i switched the outter wires that i wasnt sure of to see if that would work but they still come on. the car starts but in order to u must have the throttle open all the way and its hard to start after the first time it turns on. when the car is running it wont idle and u gotta open and close the throttle in order to keep it on. when u try to turn it on again it backfires. the plugs look to be burning well. so ANY suggestions would GREATLY be appreciated!!!!!!!!!! thanks .....

[sunsetorangess]

Check the timing. Might have too be tunned.
I would get it on a diagnostic machine that reads in real time and see what all is going on.
J