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chevytruckc10
02-12-2008, 09:58 PM
When the new MSD 6Al2 part# 6421 comes out is MSD going to discontinue the MSD 6al part# 6420?

msd_admin
02-14-2008, 10:32 AM
Nope, the 6420 will still be available. Keep in mind the new 6AL-2 is microprocessor controlled, has rotary dials to set the rpm limits on the built-in 2-step (no more rpm modules) and provides hotter output than a 6-AL.

chevytruckc10
02-14-2008, 01:36 PM
Thanks for the response