[Diy_efi] 406 fuel injected small block

[Doug Dayson]

An aftermarket runner and manifold Tuned Port will be all finished by 4K RPM
on a 406ci (stock TPI even earlier than that), so it would only be effective
for towing , or rock crawling etc. The TPI was originally designed for the
5L V8, as in stock form is already marginal on the 5.7L engines, and out of
it's league on a 6.8L.

If you are building a performance motor that will spin to roughly 6K RPM or
so, then consider the TPIS Mini Ram, Holley Stealth Ram, or a converted
Single Plane from any number of vendors (or DIY).

The other option is the Super Ram, which will do well to about 5000K RPM on
a 406ci, maybe a bit better if ported, and would be a nice compromise
between the two for a heavy chassis.

We'd really need to know the weight of the car, it's gearing and rear tire
size, and intended usage to make a complete recommendation etc...

Doug 

On 6/1/03 8:25 AM, "andrew stegman" wrote:

> hello everyone
> 
> this is my first post to this mailing list so here goes
> 
> I am looking at building the engine for my first performance car and I have
> been weighing several options
> one i am thinkiing about is to retrofit a tuned port setup onto a 400 small
> block base. what i need to know is 1. what things should i be looking for
> for parts 2. what are some problems i will probably run into 3. is there a
> better setup to use than th tuned port system ?
> 
> also if you have any ideas, hints, tips on making this setup a very drivable
> performance system. etc....
> 
> 
> 
> thanks for any help
> 
>                     andrew
> 
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