I'm very biased towards Megasquirt. I've had the MS3X on my 400 for many years now, would have no problem using it with boost. Many DW guys over there use them and are a fair amount cheaper than other ECU's of equivalent functionality.
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'71 Holden HQ Monaro - 3850lbs race weight, 400c/i - 11.4 @ 120
'66 Pontiac GTO - 389, 4 speed street cruiser
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