Well here's the deal. The car is about ready to rock and roll. This will be my track car, maybe some late-night stunts....I want optimum WOT performance, gas milage and part-throttle performance is not of concern. So this is my question. What benifits will I gain changing over to a carb? I think I will be building up the 305, as "inefficient" as it is to do so. My plans will be cam, heads, valvetrain, manifold carb/tbi and a 75 kick of spray. When it bites the big one, I'll be building a 383. Any recomendations? I don't really want to get into chip burning...But I would if it means I could get better performance when combined with said engine mods....What do you guys recomend?

 

My 90 came with TBI, The L03 just like yours. I swapped in a 350, and threw a Edel. Performer RPM on there, and a Q-jet.

If you can rebuild a carb right, and don't mind it I'd go that route. It gave it a whole lot more upper RPM power, and a whole lot more throttle resp.

The cons? there really are none...

 

carb, but save up for a hod eventualy, ince you'll wanna run a better intake on the 383...

do a performer airgap intake mani, a 600cfm carb, decent cam, headers ect..

As for the conversion, its ppretty damn easy - just used the stock pump, which is spporting my 430hp motor btw, and ur good to go

 

Arnt you the guy in the other threads whose car stalls when you put it in drive??

If your gonna modify your car go MPFI, not carb. Jeez.

-- Joe

 

Why do you like MPFI over a carb? Honestly I'd like to do mechanical adjustments, not chip tuning...Plus I already know how to tune a carb, but I'm wondering, in this application, what will work best?

 

If you have the car registered in California, going to carb will create problems for you. Do some research.

 

Yes but I don't even drive on the streets anymore. My license is suspended for now, so i'm building the car up for track only or desert fun. I did my research, now I want opinions from people who have done this. Thanks for your helpful post

 

Other than not being able to make it run right, evidently...

https://www.thirdgen.org/techbb2/sho...hreadid=262791

 

Okie newbie. Good luck!

Born in 1984, and license suspended allready? Geez. kids today.

-- Joe

 

I guess I can see where your situation gives you different requirements than most. My bad assuming you'd want it streetable.

 

No wories kevin. Ya most of my voilations were on my motorcycle, exibitions of speed and what not. I learned though. Have fun abiding by all the rules old guy. (JOE) hahahahahahaha...no seriously though you're just OLD and grumpy

 

No wories kevin. Ya most of my voilations were on my motorcycle, exibitions of speed and what not. I learned though. Have fun abiding by all the rules old guy. (JOE) hahahahahahaha...no seriously though you're just OLD and grumpy

 

No wories kevin. Ya most of my voilations were on my motorcycle, exibitions of speed and what not. I learned though. Have fun abiding by all the rules old guy. (JOE) hahahahahahaha...no seriously though you're just OLD and grumpy

 

wow no wonder your so loved around here...LOL

but seriously i swithed my 88 gmc from tbi to carb when i swapped in a 350 and its not that difficult at all

i noticed a huge difference in the upper rpms especially over 3500 rpm but it also has alot better response and i cant complain a bit well except for the no choke part and winter comming ...LOL

and you need to slow down on your motor bike if you want to live long enough to drive your car.....maybe selling that bike would be a good idea .....then you will live another couple months...

 

"wow no wonder your so loved around here...LOL"

awwww people don't like me?

"but seriously i swithed my 88 gmc from tbi to carb when i swapped in a 350 and its not that difficult at all "

Ya, I'd like to lose the computer...

"i noticed a huge difference in the upper rpms especially over 3500 rpm but it also has alot better response and i cant complain a bit well except for the no choke part and winter comming ...LOL "


YA DUDE some honest to goodness facts! THANK YOU! That's the kind of post I'm looking for! So damn sick of sarcasm!

"and you need to slow down on your motor bike if you want to live long enough to drive your car....."

I've had some close calls...I know what you're saying though...thanks.

"maybe selling that bike would be a good idea .....then you will live another couple months. "

haha, i'll take my chances....I've layed it down 3 times so far...just pushing it too hard...It made me a better rider though...

I'm about to get a pickup truck from a friend so I can tow my camaro places to go race...I'll most likly make the truck the daily driver...and the bike for the rush!

Thanks General! no hard feelings right?

 

i dont hold a grudge or have bad feelings for people i dont even know ...LOL

but in all seriousness youll love the difference from a tbi to carb its night and day

change the distributor to a older hei and hook every thing up on the engine and get it running before you go cutting wires out of the engine compartment ....

 

"change the distributor to a older hei"

Can I leave my current one? Or do I have to swap?

 

if your wanting to run a non computer contolled carb then you will need to change to an older hei gm style

 

gotcha thanks.

 

you will also want to get a fuel pressure regulator so you can use your existing pump .....

 

Ah good, I forgot about that, how the FI uses alot more pressure that could have messed things up!

btw check my side exit pipes thread

Thanks again

 

Actually, if he leaves his map sensor in place he can use the ecm to control the tranny and spark. Wouldn't take more than an hour or so to get it to be a timing and drivetrain only ecm.

-- Joe

 

interesting......I like options.....

 

have never done it that way we always just totally convert

 

Don't feel bad Dude. Alot of individulas on this board give newbies a hard time. Seems like if you don't know the answer to your own question they just wanna give you ****.

 

What happens when the TPS is no longer detected
by the ECM?
Is TPS used for tcc lockup?