In a few weeks im going to be swapping a 305 tpi for a zz4 and keeping my tpi. MY question is whether to go with regular aftermarket TPI or something like the lingenfelter super ram. I know the super ram sacrifices low end power but with the zz4 and all its torque would it be worth loses some low end power to make some real high end HP? Just wondering if any of you have done this and looking for some pros and cons of each set up.

Aftermarket bored TPI or the Super Ram ???

please help this is a costly choice. thanks

 

People go back and forth on the superram but it is a good system and I think it would be a good chioce for a ZZ4. I have the Superram base on my ZZ4 and like it so I say go for it.

 

I've been planning a 305TPI to ZZ4TPI swap for a while. That's why I got the Edlebrock manifold and SLP runners(both modified), which are basically a "no-no" for a 305. Honestly, I did notice some bottom end torque loss vs. more usable RPM gain(5200), which is good in my case since I got 4.10s.
I'm gonna find out if my combo holds any water when I run the car at Etown, in a week or two.
So to answer your question, in my opinion I think the Super Ram set-up is better suited for a VERY modified motor(to get the most out of it).
For a street/srtip driven 350 a ported manifold w/matching SLP-or-like runners and possibly ported plenum w/a larger throttle body, would be the ticket. I'm talking money-wise, of course(read sig)
Mike