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View Full Version : MSD ignition upgrade?



Toronado
03-24-2010, 09:51 AM
What do people think about the MSD 6al on an Oldsmobile 455 with
no mods? I have ran the 6al on small blocks before and it really did not help performance at all, it did make it easier to start. Is it going to be much different on a big block, i want to get better performance. The engine runs great and has good vacuum readings. Any help is appreciated.