Tbi to carb conversion on vortec block

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Supercharged111

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Not really, the TBI delivers fuel the same way as your carb, it's a wet manifold system. I'm running TBI on a 377 cu in (383 without being bored to 4.030") stroked Blue Print short block with aluminum "fast burn" style heads that flow better than Vortec. Running at 10.3:1 compression. I have it rev limited to 5700 rpm (until I get it broke in) and no "backfire" with ~12.5 AFR on my WBO2. I'm thinking your "backfire" was really lean pops. What AFR are you running at?

I can "tune" my TBI with a laptop, not with a screwdriver and wrenches. Everything in the TBI is replaceable or serviceable. I have an AFPR so, if I want more fuel, I simply raise the pressure or adjust my VE fueling tables.

I don't wanna get into a pissing match but, carburetor technology is older than TBI and way harder to "tune". Why would I want to revert back to the 70s when I was first tuning carbs? :33:

Enjoy running your toilet bowl system, I'd rather be running a computer controlled toilet bowl :biggrin:

I believe metered air leak is the term you're looking for.
 

Moleman

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Not really, the TBI delivers fuel the same way as your carb, it's a wet manifold system. I'm running TBI on a 377 cu in (383 without being bored to 4.030") stroked Blue Print short block with aluminum "fast burn" style heads that flow better than Vortec. Running at 10.3:1 compression. I have it rev limited to 5700 rpm (until I get it broke in) and no "backfire" with ~12.5 AFR on my WBO2. I'm thinking your "backfire" was really lean pops. What AFR are you running at?

I can "tune" my TBI with a laptop, not with a screwdriver and wrenches. Everything in the TBI is replaceable or serviceable. I have an AFPR so, if I want more fuel, I simply raise the pressure or adjust my VE fueling tables.

I don't wanna get into a pissing match but, carburetor technology is older than TBI and way harder to "tune". Why would I want to revert back to the 70s when I was first tuning carbs? :33:

Enjoy running your toilet bowl system, I'd rather be running a computer controlled toilet bowl :biggrin:
No.
 

Hipster

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I think it was Richard who once said that replacing worn out parts with new performance parts gives one the impression it is an "improvement" when simply replacing the worn out parts was the biggest improvement......
the lighter the wallets gets the greater the perceived performance. lol
 
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