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Hey guys... Looking for some feedback on my next mods. My current set up is below. Looking at doing heads and throttle body for sure along with some other things...
These are the head my tuner recommended:
frankensteined.net
But then he also recommended a 90mm ls7 Tb? I'm hearing 103mm is best if doing heads and have a cam.
Considering:
Zl1 lid? Is it worth the gain
Porting supercharger?
Appreciate your feedback
Cheers
These are the head my tuner recommended:

M311 273cc LS3 Rectangle Cylinder Head-Complete Set | Frankenstein Engine Dynamics
High performance cylinder head and billet intake manifold manufacturer for LS, HEMI, Small and Big Block Chevy platforms. CNC cylinder head porting services. Billet aluminum intake manifold for LS1, LS3, and LS7.
But then he also recommended a 90mm ls7 Tb? I'm hearing 103mm is best if doing heads and have a cam.
Considering:
Zl1 lid? Is it worth the gain
Porting supercharger?
Appreciate your feedback
Cheers