I used Manto Stage 5 - 7/16ths pushrods in my 493 along with a custom set of T&D's and a B3 Racing geometry correction kit. The result is the smoothest running/reving RB I've owned it 4 decades. Curious about the B3 Geometry correction kit? Tell me more. I think you would get a lot more quality information if you gave Mike at B3 a call after reading and understanding his articles that can be found on his web page linked in an above post.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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