port injection for 4.3L V6 ?

[Charles Morgan]

Howells used to sell a kit to retrofit 4.3Ls with TBI to Central Port 
Injection.  CPI is not really port injection, though it does have pressure 
operated poppet valves at each port.  Horsepower is increased from 160 (for 
TBI) to 200 and peak torque, I believe, is 260 lb ft.  CPI manifolds are 
listed on Ebay every now-and-again--I think there's one there now.

Charles Morgan

At 11:53 PM 7/12/01 -0400, Mel wrote:
>I have a '90 Chevy S10 with the 4.3L V6 and TBI.
>It is bone stock.  After a stock rebuild, it is running well again.
>I believe I understand the TBI system fairly well and
>would like to upgrade the induction to port injection.
>I am looking at street use only, with the occasional tow.
>Would like to improve low RPM torque if possible.
>Does this type of retrofit even make sense?
>Are there any factory port injected 4.3 (or other) systems
>that could be retrofitted?


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