Upgrade for two pump fuel system?

[GT350R]

I want to know if anyone has upgraded their early two pump fuel system by adding a bugger inline external pump? It seems alot of people say to yank both pumps and go with the Walbro in the tank, but all of those people were single pump set ups to begin with. I would like to hear from the dual pump guys.

I acually saw a surprizing comment awhile back on Dave Comptons website stating that teh stock dual pump set up was a little better then the factory single pump set up at supplying fuel at higher HP and boost levels.

I would really rather keep my car as close to stock as possible and if I can make a nice upgrade to suppost a most of the common mods by adding a bigger or better external pump, I would do just that!

[SVO4PWR2]

i did away with the stock intank pump and replaced the inline pump with a high volume unit. the reason being that my car would run lean sometimes under alot of boost. it took a little while to find this out, i notice it lean after i installed a Halmeter AF30. It seems that if you put a high volume inline your going to be limited by your intank pump. I also helped a fellow SVOCA member Ninjiaboy convert his 84 to a single intank pump which was very easy to do. Just make sure that you get a 86-93 intank pick up unit, or just modified the 84 unit, and ground the wire thats located in the trunk. its always good to have a little more fuel than to run lean. P.S. THE PUMP ISN'T CHROME.....YET LOL

[AT6svo]

2 pump system upgrade

Hey GT,

I will be performing this upgrade on my 84 svo soon. From what I have been able read up on, to perfrom the one intank Walbro, you insert a ford ranger fuel filter (dunno the year) inplace of the rail pump. If your trying to stay stock appearing you could either get an inline pump for a F250/460, if it can supply a 460 w enough fuel I'd think it'd be able to handle the 2.3 even w the turbo. ( I have an 89 F250 with that setup, I replaced the old unit w a new stock piece & think it was ~$100). My friend used an inline BBK unit for his 88TC motivated sand rail.

I'll have a bit more real world info to add once I actually do the swap, but I'll be going to a single intank pump.

[GT350R]

I heard about the Ranger filter trick too! I plan on running a single intake pump on the Grey GT.

After running the GT for a bit. I am wondering if I will even need to upgrade the pump. It runs pretty rich now. I have a big VAM and 35 lb'ers on the stock 84 GT computer. I am thinking with teh big valve head (if I even put it in the white one) it should even out the A/F a little. Then it will be a matter of tuning it with an A/F gauge.

So yeah, pass the info along and if you feel like it, write up a little article on it (mabey even with pics) and I could even post it on my site with credit going to you of course