TBI cam duration

[CSH-HQ]

400 HP from a single TBI-Nope
400 from a dual TB TBI Possible, but no ecm is designed to do that (oem).
There are several threads about the Howell design, and it's shortcoming
(ie the system using the 730), while Turbo city and Howell sell a setup for 
duals and a 747 it also suffers from the same flaws.
  Your generating a no win situation, from what I see.
360ish real HP is doable with the BBC TB.
I'm making about 325 with two 2" buterflies on a 355 SBC  TBI.
Grumpy



>454 tbi's are hard to find around here, v-6 tbi's are real cheap (free):
>
>I'm building 400 sbc with aftermarket heads or vortech, haven't decided yet, 
>stock crank, 5.7 stock rods, mild cam to replace 350 in 93 cop car which 
>already has tbi
>
>The Howell dual tbi stuff looked good as a complete package but the price is 
>out of my budget; tpi's are available but I understand they will not support 
>much hp without alot of extras such as big runners, ported manifold, big 
>throttle body, big injectors, etc.  This is out of my budget.
>
>I thought if I could add another cop tbi it would feed up to 450 hp using 
>adapters on an old dual quad manifold.  I haven't looked at the ecm for a 
>part number yet.
>
>Assuming I can find a 454 tbi, how much hp will it feed without going to 
>bigger injectors or making custom modifications to it?  I'm a "bolt on guy" 
>not a machinist and am just learning ecm.  (I ordered the new board, but it 
>appears it will be a while before I have it up and running).
>
>I would appreciate any ideas  on a simple and inexpensive way to keep efi and 
>still get 400 hp.
>
>Thanks.
>