i just bought t&d 1.7,s for my sr,s.the arm was to close to the retainer.i use 1.550 springs.t&d said a min of .100" clearence.i was nowhere near that.i had to use minus .050 locks on mine.you could use lash caps thou.

68 cuda formula S 588" bb 5sp
70 CUDA CONVERT 500" 5SP (SUBLIME)
70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!