SBC TBI HEADS MAX LIFT

[dickeymoore]

I have a small block Chevy 350 with TBI heads, Aluminum Intake ,a Holley carburetor I need to upgrade the camshaft what is the max lift that I can put in this Engine with the stock springs on the tbi heads, I was thinking of maybe like a Comp Cam 268 with 454 inch lift will this work good or what?

 

[Injectedcutty]

Not sure on the max lift of those heads, but I have a brand new in box Comp 268xfi cam and lifters if that's the route you go. I bought it for my old 355 and never used it, it needs a new home! PM me if interested and I'll get you some pics.

 

[Yav8]

With the intake runner half blocked with the ramp in the intake port, they fade big time at about 4800 rpms. Springs are installed at 1.70 so any Z-28 spring will work just fine. They are also a 64cc chamber keeps the compression at around 9-1.

 

[dickeymoore]

I just want to install a new cam no spring change