Chevy 11,
I put the Pertronix II Ignitor in my 250 Camaro. It took about 1/2 hour to bolt in, uses the stock distributer which dose'nt have to be removed to install, and can use the stock coil (I upgraded to a hotter coil) and works great. There is a guy out of Florida on E-bay that sells them for about $50-$60. Let me know if your interested or need help finding him on E-bay.
JOHN