Swap to carb

[93blackthunder]

So obviously you can make more power with a carb than with a tbi unit. but how hard is the swap. ive never dealt with carb anything before.

 

[4x4incountryboy]

go to the engines section and look up carbs, there are many of the same question that will get your answers depending on year of your truck and your plans for it

 

[Michael D]

Carb swaps are easy. Ditch the tbi, intake, and distributor. Put on a carb/intake, and HEI type distributor. Mount a return style, carb friendly, fuel pressure regulator. Wire up power to the coil and tach, and viola, you're done. More or less anyway......lol

 

[4x4incountryboy]

Carb swaps are easy. Ditch the tbi, intake, and distributor. Put on a carb/intake, and HEI type distributor. Mount a return style, carb friendly, fuel pressure regulator. Wire up power to the coil and tach, and viola, you're done. More or less anyway......lol

i thought if he wanted to keep the stock intake he could as long as he had an adapter plate? ...that and your gonna wanna zippy tie alot of wires...dont cut them like i did...granted Its a cleaner look and i knew what I was doing but never a good idea to hack

 

[GMCTRUCKS]

Ok but what if one wanted to do it when your truck has a 4L60e Trans is it worth the headache and here we have to pass emission test??

I have a good set of Vortec heads but im debating.

 

[4x4incountryboy]

idk, with mine all i did was buy a new plate for the trans kickdown and throttle and had to alter it a little...so idk

 

[polar]

For the 4l60e you need a tps sensor for your transmission to shift correctly. If I was doing the carb swap I would get a Holley carb and Holley's tps kit

 

[Michael D]

Ok but what if one wanted to do it when your truck has a 4L60e Trans is it worth the headache and here we have to pass emission test??

I have a good set of Vortec heads but im debating.

My truck has a 4L60e too. As long as your vss is working properly, you connect the tach wire from your harness to the tach lead on the HEI style distributor, and you have a working tps and coolant sensor, your 4L40e should run/drive/shift just fine.

 

[Michael D]

For the 4l60e you need a tps sensor for your transmission to shift correctly. If I was doing the carb swap I would get a Holley carb and Holley's tps kit

The Holley tps kit is a waste of money imo. I mounted my tps directly to the primary throttle shaft on my carb.

 

[Michael D]

i thought if he wanted to keep the stock intake he could as long as he had an adapter plate? ...that and your gonna wanna zippy tie alot of wires...dont cut them like i did...granted Its a cleaner look and i knew what I was doing but never a good idea to hack

I weeded out all the useless crap out of my underhood harness too. I unwrapped the harness, and cut out everything that doesn't serve a purpose anymore. It's way cleaner looking now.