New BB Crate engine not wired correctly??
A little background: I've installed a ZZ502 in my '67. When I started the project I had nothing but a shell so all wiring would also be new. I installed the 502 and all the necessary engine and dash harnesses. I installed the battery in the trunk. The engine was prepped including removal of distributor for oil priming and all other fluid levels brought to the appropriate levels. Distributor was re-installed using some guidelines on this web site.
It did take some time wiring the HEI distributor, electric fuel pump, solonoid, ignition key, appropriate grounds. I used a ampmeter to locate live wires in the engine harness to help me in this task. I used aligator clips for trial and error to fire the engine.
After several trials I finally got the engine running and did my base timing by hand. With the exception of one noisy lifter the engine ran great even though my timing was by hand/ear and without a light.(However very rich with some unburned fuel fumes) This was also achieved without the use of the electric choke. The other day I decided to set the timing at the required 10 degrees BTDC.(w/o vacumme line attached) The distributor was almost there and little adjustment was needed. After this I decided to
hard wire the new gages including tach, oil pressure, water temp and hook up the electric choke.
NOW THE PROBLEM: After starting the engine I quickly realized that something has changed and it now runs terrible. Can't give it any throttle without stalling, barely idles, backfires, etc. What might be wrong? Electric choke wired wrong? Should I have wired it first before timing? Maybe I don't have a solid 12V to the electric choke?? Thanks for any ideas! KP