Thread: FiveO 550s or 750s
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Old 02-22-2011, 07:25 AM   #5
codyace
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Quote:
Originally Posted by Niztec View Post
Thanks Kandy I would prefer to work with the 750's as opposed to the MSD equivalent.
So you'd rather trust rebuilt/redrilled injectors

MSD 72lbers will be fine. The 50 lbers are the ones that had issues 10 years ago running at 100% duty (go figure) and would go static.


Power wise, for the OP: 550's would be safe for 350ish whp, 750's good for 450-475.

BUT, when it comes to redrilled / non manufactured injectors, it's hard to ever really know. Use those above HP estimates just as 'references' towrads peak not fact.
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