70 440 Timing chain bolt pattern

My 70 Cuda 440 needs a new timing chain ( badly ), I see there are 3 bolt and single bolt options from Summit ? The build date on the car is 12/5/69 and the motor has a "69" stamp on it, but it is a numbers matching motor. Any way to tell what pattern it "probably" is without pulling the cover? I'll take a look at the FSM today and see if it shows the pattern ( maybe should have done that first before posting :cool: )

Thanks
Author: WhiteGP