305 -> 383 Questions
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Supreme Member

Joined: Sep 2001
Posts: 1,195
Likes: 0
From: Flowery Branch, GA
Car: 1985 Iroc-Z
Engine: 1 BA 305 TPI
Transmission: Probuilt 700R4 - 2800 Stall Midwest
Axle/Gears: 3.42
305 -> 383 Questions
I am looking at replacing my 305 TPI with a 383. I am thinking about switching to carb due to the high cost of staying with an EFI setup. The 383 has been dynoed on the engine stand at 400HP and 440TQ. I know that will need to be get a new fuel pump. Any suggestions? Any suggestions on which carb would be the best? How do I make the transmission work correctly with a carb setup?
Supreme Member
Joined: Jul 1999
Posts: 18,457
Likes: 16
From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
Switching to carb isn't as cheap as you might think at first pass.... you need an intake, a carb, a distributor, and a FPR. That's over $500 right there. Plus countless incidental things that will nickel and dime you to death.
For about that same amount of money, you could use a Stealth Ram, which would support the power level of that motor reasonably well. Have you considered that?
For about that same amount of money, you could use a Stealth Ram, which would support the power level of that motor reasonably well. Have you considered that?
Thread Starter
Supreme Member

Joined: Sep 2001
Posts: 1,195
Likes: 0
From: Flowery Branch, GA
Car: 1985 Iroc-Z
Engine: 1 BA 305 TPI
Transmission: Probuilt 700R4 - 2800 Stall Midwest
Axle/Gears: 3.42
I've have been checking that out and you may be right. The motor comes with an intake. I have been comparing all the cost of carb to a SuperRam which is at least $1500. I will look at the StealthRam. Thanks
Thread Starter
Supreme Member

Joined: Sep 2001
Posts: 1,195
Likes: 0
From: Flowery Branch, GA
Car: 1985 Iroc-Z
Engine: 1 BA 305 TPI
Transmission: Probuilt 700R4 - 2800 Stall Midwest
Axle/Gears: 3.42
It looks like a Stealth Ram is going to cost me around $1500 - $2000 by the time I got the new injectors and TB. Now I'm starting to rethink the idea of the carb. I can get the carb done for around half that.
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