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Message: <blockquote data-quote="NXcoupe" data-source="post: 707471" data-attributes="member: 11751">All good questions. To determine how much spray your combo can handle, you must first determine how much n/a power your car makes. Most mod forums will agree that around 450 hp is about as much as those shortblocks can handle reliably for any length of time. So, saying upwards of a 200 shot for most stock cammed PI engines with long tubes, etc, is about the max I would say safely and that with either a modified dry kit or a port injection of some kind. Over 125 shot of wet nozzle or plate will cause to much fuel to fall out of the intake charge and cause a lean condition in certain cylinders. So I hope that answers your question on the topic of how much power. As for mods increasing power on nitrous, well stock cams are going to net the most cylinder pressure and have the widest lsa you can get without a custom grind cam. As for other aftermarket cams, you will sacrifice some power because of overlap, unless again you go with a custom grind with an lsa over 114. As for exhaust, yes, larger ports on the exhaust, long tube headers and a free flowing exhaust make for great power on a nitrous combo. Short lsa camshafts net quite a loss in power, ie, a 100 shot only netting 50 to 75 hp. Whereas wide lsa's can net more power than the shot actually is jetted for ie, just tuned a 4.6 with stock cams, 100 shot netted him 120 hp with my nitrous tune. Very safe tune as well, it's the camshafts that are the secret.</blockquote>