Intake selection
My two choices:
Im going to run the ZZ9 cam with ported heads, headers, 58mm TB, & a few other mods, but i cant decide which intake...
Either the Superram with the 3.07 gears
or
LT1 intake with 3.73 gears
any opnions??? Thanks





The 58 is the only thing there I would definitely veto.
I am not about in to buy into the 58mm or not arguement.
BUT
I bought one for my 383 race engine.
Just out of interest I ran it on my 95,000 L98 350 with zz4 cam ,siamized stock base,LTs , 2K converter.
None of the off idle flat spotting as predicted here , great response , Ran exact same ET , 60 ft and 2 mph increase at track compared to same setup with 48mm.
Same 60ft shows no loss of bottom end.
I am not about in to buy into the 58mm or not arguement.
BUT
I bought one for my 383.
Just out of interest I ran it on my 95K L98 with zz4 cam ,siamized stock base,LTs , 2K converter.
None of the off idle flat spotting as predicted here , great response , Ran exact same ET , 60 ft and 2 mph increase at track compared to same setup with 48mm.
Same 60ft shows no loss of bottom end.





I bought one for my 383.
Think about what you read and write folks. This must be an off-day for the forum, people are nitpicking me.
Read what I WROTE!
The comment was;
I bought a 58mm for the race 383 I am building.
I was having a intermittant idle problem on the above basically stock TPI 350 which I thought was due to the old TB.
I installed the 58mm , it's street manners were perfect and because it was a track weekend , ran it to see what difference it made.
Results as stated above.
Perfect drivibility and no loss of bottom end power.
"Was there a before and after test with different runners,tps settings and etc?Im just curious?"
I have over 50 passes on the stated combo.Run 13.1 - 13.4 depending on traction which shows up in the 60ft times.
Mph is always 100-101mph.
With the 58mm ,ETs varied as always due to traction but all runs 103-104mph.
This subject has been thrashed to death;all I am stating is that irrespective of the what the formulas say . the 58mm had no bad effects on my mildly modded engine .
"So youre out nearly 300 bucks"
No because this Forum is such a cool place I got a new 58 mmTB from Togo for $200 and it is going on my race engine
My two choices:
Im going to run the ZZ9 cam with ported heads, headers, 58mm TB, & a few other mods, but i cant decide which intake...
Either the Superram with the 3.07 gears
or
LT1 intake with 3.73 gears
any opnions??? Thanks
i am still in this debate with my mind. but my choice is either the SR or the MR with the 219. the only reason i would go SR is because this way my 3.07's are prefect suited for it.
it's all a money pit, just depends how deep u want to go.









