I was asked where you can get a stack injection for the corvette Lt1 engine?

[Grumpy]

well there is several routes you could go!
vendors like KINSLER FUEL INJECTION and

Best Fuel Injection System for Cars, Trucks & SUVs

We have the best Fuel Injection System for the right price. Buy online for free next day delivery or same day pickup at a store near you.

www.autozone.com

speedmaster-fuel-injection-system-1-135-010/1340519_0_0?cmpid=LIA:US:EN:AD:NL:1000000:GEN:19502258551&gad_source=1&gclid=CjwKCAjwlbu2BhA3EiwA3yXyuwNOAyFqCx9mihyHRYyX5dYQJikZPTQIdXVoRH6wwPzDmxRO1SvGzRoCItcQAvD_BwE&gclsrc=aw.ds
https://kinsler.com/Shop/ that sell old school SBC EFI
or old school mechanical fuel injection systems that any decent custom auto machine shop,
could modify with some welding and machining to fit the LATER LT1 engines

https://product-arena.s3-accelerate.amazonaws.com/Speedmaster/1-135+Fuel+Injection+Systems/1-135-003/1-135-003.jpg?resizeid=217&resizeh=1600&resizew=1600

while its not STACK INJECTION "FIRST " efi does sell a direct bolt on EFI for the LT1
Ive used several and they work very well if used with the correct matching cam like a CROWER 00471(designed for the later LT1 engine ) and AFR 195cc LT1 heads

Air Flow Research SBC LT1 195cc Alum Heads Eliminator Street A/P | eBay

Find many great new & used options and get the best deals for Air Flow Research SBC LT1 195cc Alum Heads Eliminator Street A/P at the best online prices at eBay! Free shipping for many products!

www.ebay.com

Ideal TPI Build?

Grumpy, I'm interested in your expertise. I roamed around your site some today, so if this has already been discussed please post a link to the discussion. If you were to pick the best heads and cam combo for a SBC with a ported, stock tuned port setup, what would it be? I realize you can get...

garage.grumpysperformance.com

 

[Grumpy]

Kinsler Mechanical Fuel Injection Intake Kit, Raptor 305 SBC

www.speedwaymotors.com

https://garage.grumpysperformance.com/proxy.php?image=http%3A%2F%2Fwww.grumpysperformance.com%2Fjan19%2Ffirstp1.jpg&hash=e893d806285084258b612a1b51751e70 first does sell an excellent direct bolt on LT1 TPI unit that if matched to the 195cc AFR LT1 heads and a CROWER 00471 (LT1 engine version) works very well.

just some info you might want to know
a properly set up fuel injection system has significant advantages,
over a multi carb induction system on most engines

(from hotrod ) carbs vs injection
Why? Because the fuel is mixed with the air passing through a carburetor by a pressure differential between the air within the venturi and the outside atmosphere as exerted upon the fuel within the float bowl. No air flow, no fuel flow. Moderate air flow, moderate fuel flow'. Heavy air flow', heavy fuel flow. We're over-simplifying here, of course, it's true—but it's also true to say that basically a carburetor will deliver the fuel in direct proportion to the quantity of air passing through it.

Now what happens when we inject the fuel instead? Something in the way of a metering system has to adjust the fuel flow' so as to vary it right along with the changing rates of engine air consumption, just as a carburetor does, or we've gone to a lot of trouble for no gain—or have we?

Right there we hit upon the nugget of fuel injection appeal—in many cases, the added breathing area offered by an injection unit, compared with what may be had with conventional carburetion set-ups, will result in a power increase even though control of the air/fuel ratio may beinferiorwith what could be attained with carburetion.

Look at it this way—a carburetor has to have a venturi—otherwise it isn't a carburetor, but instead becomes a form of injector. A venturi consists of a deliberate restriction to air flow so as to increase the velocity of air passing through it and thus cause that same pressure drop that is responsible for the pressure of the outside atmosphere in the float bowl forcing the fuel from the bowl, through the jet, into the airstream passing through the carburetor into the engine. No matter how many carburetors you put on, you've still got to have less venturi area than throttle butterfly area. With injection, the sky's the limit—since the fuel is forced in under pressure not dependent upon fluctuations of pressure within the air the engine is breathing, no restriction is necessary.

Grasp that—and hang onto it hard—because right there is simultaneously the blessing and the curse of fuel injection. The fact that no restrictions are necessary furnish its appeal—better breathing, better output from the same engine. But—the Way injection gets around needing those restrictive venturii, by pressure feeding the fuel to the engine, is where the difficulties come into the picture. Let's take a look at the different ways injection builders have succeeded in giving engines better breathing with their products and at the same time endeavored to provide air/fuel mixture ratio control at least equal to carburetors, if not better. But one last reminder before we do—an engine with completely free breathing on the induction side, due to running some form of fuel injection, may produce more power than one restricted by carburetors ,even if the air/fuel ratios on which it runs are less correct with the injector than they are with the carburetors, if the increase in breathing is sufficient to off-set the loss in power caused by less-than-perfect fuel/air mixture ratios.
and carbs only flow fuel when there is a difference in pressure between the outside air pressure and plenums lower pressure, thus alway a marginal delay in response time, while fuel injection can be programed or adjusted to fog fuel into the plenum,or individual intake runner air stream at a controlled rate, intermittently or constantly at any rpm range