4.3 TBI

[Vandervoort, Richard D]

The GM part book lists one cylinder head for both the 94 TBI and 94 CPI
(L35) engine, does that guarantee that both use the same head or that
just one replacement head is available.  I have the TBI engine which
included the balance shaft in 94.  How do I determine which powertrain
controller is used in my vehicle.  



> << 
>  I have a 4.3 TBI  GM v6 and would like to get more H.P. out of it as
>  >cheaply as possible.  So my current plan of attack is to increase
> the
>  >throttle body size and install a more aggressive camshaft.  Are the
> TBI
>  >units for the v8 truck engines similar with larger bore sizes? 
>   >>
> The cams are "roller' designs and costly (cam only, around 250.00  us)
> That L35 ballance shaft engine has improved cylinder heads
> over previous years.  Something like 17% on the intake side
>  & 12% on the exhaust.  Syclone & Typhoon owners are selling
> their first born for the cylinder heads.  A good set of headers, in 
> addition to your throttle body install, will make for most fun per $$
> invested.
> Not sure if you need to tweak the base inj.pulse or not.  I assume
> it's a PITA OBD system? 
> Mike V.
>