Hey there all. I was looking to purchase a holley 670 tbi. I was on ebay looking and there are a lot for sale. My question is what is the difference in the 670 that is for the 4.3l and the 670 for the trucks? They seem to be identical and have the same sensors on them.

Thanks, any input would be awesome.

 

I am pretty sure it is just the inecotr sizes. They have a 305, 350 and 4.3 version. All three come with different sized injectors. Most opt for the 350 unit and prom tune around it to get the best fueling.

 

Shifty,

Thanks bro. It is just that the 4.3 ones go for like 25 to 50 bucks. So I was thinking of buying one of those since I already have the injectors. Thanks again. Oh yeah I am done building my 383 just like r90's and when I get the fuel system it will be installed. Will post pics.

Thanks,

Bill