3.4 from SFI/Distributorless to Carb/distributor

[luismave55]

I am converting a MGB to a MGV6. I have a 3.4 SFI from a 1994 Firebird. I been thinking on converting the SFI to carburator, I have iron cast heads so should not be any problem. But doing this I have to change the distributorless to distributor. Do any one have done this? Can I do it with a distributor from a 2.8 with vacum advance?
Thanks

[ForcedFirebird]

Yup. That's exactly what you need

[geoffinbc]

You can get a Coil In Cap distributor from a FWD car. Or a Remote coil setup from an S-10 or a Camaro.

[lowflyer]

3.4 distributor

Since almost all of the used distributors you're likely to find are going to be quite old (worn?), another option is an aftermarket one such as the Mallory.

I use one in my kit car with a 3.4, but have changed from the original dual point set-up to a Pertronix electronic system, which is maintenance free. One side note, use the original distributor lock down tab from a 2.8 and not one of those shiney auto parts store bits, as they allow the dizzy to move, especially at higher rpms.

Here's a couple pics of my engine. I'm using an Edelbrock Torquer II manifold with a small Holley 4 barrel. The Mallory doesn't have a vacuum advance, so it's also smaller than the original AC part. I also installed an Edelbrock cam and kit as part of the engine build.

The second photo was taken after I came up with a "cold air intake" system made partly from an airhorn for a Dodge truck! Holler if you have any questions to lowflyer1@cox.net

Ken Edney
Chandler, AZ

[luismave55]

SFI to Distributor

Thanks for your help. I like your cold air intake. Can you send me more pictures of the air intake? What kind of kit car do you have? Thanks again.

[geoffinbc]

You could buy a rebuilt unit from the parts store too. I have used a couple and they were as good as a new one

[lowflyer]

Cold air intake

The car is called a Stalker and it's a kit made in Florida, inspired by the 1960's English Lotus 7 sports car.

The cold air system is a generic piece I picked up from Craig's List, but the air horn (the piece that sits on top of the carb) is from a fuel injected 360 cid Dodge truck, and also some V8 powered Jeeps of the 1990's. I had to enlarge the opening for the carb slightly to make it fit. I should note that I had already taken the air horn/choke off the carb to get it to fit under the hood.

The engine is a GM factory "crate" motor, designed as a replacement for the S10/S15 2.8 engine. It's a 3.4, but uses the V-drive fan belt/pulley set up from the 2.8. Power with the 4 barrel, Performer cam and kit, headers, etc. is around 190 hp, the car weighs 1510 wet.

Runs around 14 in the quarter at 97-98 mph. It would go a lot quicker but I've only run it on the 205/50-15 street tires. Even starting in 2nd gear, I can't get it to hook up. The trans is also a S10 unit as is the rear end with 3.42 gears and a Torsen LSD.

[slamin660]

this is a good dissy if you are going in that direction...


dissy

b

[luismave55]

Thanks, great help.