Im doing a 305 tbi> 350 carb swap and was told the instead of dropping the tank and installing a carb pickup that i could just disconnect power from my stock pump and install an inline pump. Basically use the stock one as a pickup. I was wondering if that would actually work. Thanks

 

if you use an inline pump, like a mechanical or something, you MUST pull the intank pump and put a mechanical pump pickup in. you can't pull through that intank pump. trust me, i tried.

 

Some have reported doing it without any problems. Perhaps their pumps were more worn than those who had problems with it.

From reports on this Board, it seems about a 50/50 proposition. Do you feel lucky?

Personally, if I disabled the electric, I'd remove it. Actually, personally I'd leave the electric and regulate the pressure down at the engine.

 

Im gonna use a holley red inline, because the stock pump is 14 years old and has 205k miles on it, i figure its about time for it to take a dump. So i might as well kill two birds with one stone.

Either way im gonna install the inline so im just gonna hook it up and see if it pumps fuel out the end of the line, if not i'll drop the tank and use a carb pickup.

 

It will probably put fuel out the line. The question is if it will pump sufficient volume and pressure.

Drop the tank and remove the factory in-tank pump if you aren't going to use it. When would be the most inconvienent time for the system to stop working for you? You can bet that's when it will.

 

Project_91RS,

I know NOTHING about a Holley Red Inline. Don't even know what it is actually. But I assume the cost of paying for the "HOLLEY" name will set you back a whole heck of a lot more than a standard block mounted fuel pump.

My son and I are running a 350 with a $12 mechanical from Auto Zone. The thing came with a lifetime warranty and can be traded in at any Auto Zone for a free replacement FOREVER!

Dropping the tank in your RS should be a whole that easier than it was in my son's car (1982) since you should have a two-piece filler neck, we didn't. You can drop the tank in a couple hours EASY!

Just my opinion.....
Kurt

 

If the electric one works just fine, use an AFPR and set the fuel pressure to the proper level with that.

If its a dud, remove it and get a mechanical pump that bolts to the block. They work just fine.

 

just for a refrence. my father and i are both using the stock replacement mechanical pumps on our cars for an 85 z28 with an lg4. my 305 has gone 13.20@101.59mph with more in it. this is in full street trim with drag radials. my father's 355 has gone 11.7x's w/ a powerglide and 4.56 gears. just figured i'd throw that out there.

 

Just throw a regulator on there, and see what happens. Worst thing that happens is it does die on you, and you drop the tank which you would have to do anyways if you install an inline.

 

yeah and after it dies on me i am out the money for a regulator and i also now have to replace the fuel pump, so i might as well replace the pump now since the car is already torn apart and save the money and headache down the road.

Thanks for the advice guys, i've decided im just going to drop the tank and install a carb pickup and most likely use the inline pump.

 

good

now, don't go beating yourself across the face trying to find a carb pickup. go down to the local parts store and buy a 3 ft section of 3/8" tubing and three 3/8" compression fittings. pull the intank pump out, pull the pump off the pickup. trim the pieces to fit and use the compression fitting to put the new extension on the pick up. then, pull the inline filter out, and put in another piece of straight pipe and use the other two compression fittings to put that in place. you'll want to move your filter to in front of your pump cause filters are push through, not draw through.

 

I think you mean "after your pump".