I recently converted my K5 over to TBI. In the process I had some problems and swapped my distributor out a few times. I am using a modified HEI for computer controlled timing. I found TDC on the #1 spark plug and tried to align the rotor to the #1 spark plug on the cap but couldn't get it to run right. I have no marks to align the body of the distributor to and nothing else to go by. How do I align the body of the distributor to line up right with the rotor and cap at TDC and #1 spark plug? Any suggestions would be much appreciated.