442guy

hey guys i was wondering what you think of swapping an edelbrock 600 cfm and airgap intake on my lb9 305 instead of the tpi.
the entire engine combo is retrofitted into an 86 442 with a 200 4r and 3.73 rear, using all parts from a z28, accept the wiring, and fuel pump(used an inline from nos) it has an adjustable reg, and a thermomaster chip. the engine idles at 900rpm, and doesnt get the kind of mileage i thought the injection would get(only about 20mpg) other wise it runs good,no troublecodes, and passed emissions with flying colors.
my friends car runs a edelbrock 600 and it runs smooth and clean and kicks my cars butt in mileage with the same displacement, but bigger cam,because i dont like the inline pump, and dont feel like paying 300 dollars for a intank, im thinking of doing this,
do you think i will pass emissions with no egr, computer, a 600cfm, and a vacuum advance? i doubt it. what are the pros and cons? i guess this goes along with the great debate, carb vs efi

burnoutrpm

im just wondering why do you say 20mpg is bad??? i get about 12 -15 and it really sucks! but its a IMPROVEMENT! my q-junk gave me a whopping 6mpg on the highway!!! so 20is just ....damn whats it like???? must be nice!! how does your frined get more than you with a carb??? im not being a d*** i really want to know so i can do whatever he's doing! but to answer your question the pros of a carb over tpi::

1. more top end hp!
2. simplicity: no sensors to fail! gas or fire if it's not running fool proof!
3. no ecm to be a pain in the a**
4. the timing is easier to set!
carb 200$ to replace: tpi about 1000$ to replace!
5. parts redily avaliabe! easy to re-build(except holleys!)
6. many more too many to list!
7. intake only costs about 120$ over the 350$tpi costs!
8. fuel pump is easier to change!
9. carb setup parts a re very inexpensive!
10. run whatever cam your heart desires without expensive chips!

tpi pros:

1. fuel mileage!
2. easier to start no warmup needed!
3. great low end and midrange tq!
4. can upgrade if you have the money!

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1989 firebird formula

Mods: converted from T.B.I. to a carburator 305 to a 350. Flowmater exhaust,hedman shortie hedders,202 160 (882) heads,.447/.447 lift 222@.050 duration speed pro 327/350hp cam 350 .40 over (356) Edlebrock torker2 and a 600 edlebrock manual choke (1405)

Future mods performer rpm air gap intake (polished) comp roller cam, and way better headsa 400 defintely in the works!

Grumpy

What doo I think?.
Why take such a bold step back to 1930s technology?. Valley Stream NY, out on the Island?. Surprised no emissions testing there yet. The feds won't be happy till everyone in a metro area is forced to test. 86 442 was that not a CCC, if so the feds will generally allow updates to emissions So if you claim the PTI is an 89 noone is the wiser, unless they look real close.
If you get less then 25 MPG, you need to refine your tuning. My problem with MPG, is staying off the gas, but in kinda a highway mode I got 25.6 A 14.7, and been leaning down to 17.2 at cruise now, so should be right at 30, with a 3500 GBod (GN).

442guy

the engine and tpi are of the same year as the car. so the feds wont be after me.
i dont really need the huge amount of low end grunt thanks to the steep first gear and 3.73s, but a little high end would be nice.
also, i dislike the inline fuel pump,because
it goes dry at 1/4 tank.

442guy

and what is a ccc and why is my 442 it?