20+ years of "Building 904/727 for drag racing use"

Plymouth 65 said
Nice Challenger you have there. I'm about to rebuild the 727 in my cousins 66 Coronet 500. I may hit you up with a few questions. I've rebuilt a couple of 904's and they appear very similar. 65'

Thanks, it was a customer's car and was recently sold to one of the street outlaw fellas on television, and the combo is completely different now.