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I guess it depends on your combo.
A good GM/Delphi LS3/LS7 works well for most street applications where it will peak at 6500-6700RPM
Lots got with the GM Performance racing lifters if they like to rev 7000+ or hard abuse.
Morel and Johnson has some nice lifters too.
On my car, I run the Johnson short travel/slow leak down race style lifter.
Very happy with them,think it's the quietest lifter that I've used so far.
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BTR LSX388,AGP Twin Turbo.6L90,GM 9.9" Diff.Fore Innovations Level 4 fuel system.Great fuel economy !!!! 1xxx RWHP
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