Make sure you have the lifter bores bushed, so whichever lifter you use sits square/properly on the cam lobes. My lifter bores were so far off from the factory it was obscene, and caused uneven wear at the roller/lobe interface not to mention the cylinder to cylinder valve timing was likely all over the board.
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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