hi what is the difference between the intake "stage 2" to weiand "Stealth" ? i have holley 4150 DP 600 cfm , i know that this carburetor need 7 psi but how much gph the fuel pump need to Flow ? the engine is 302 thanks
The fuel needed depends on the rpm and the amount of HP your engine develops. If the engine is stock then the stock pump will work fine. If it will turn 7000 rpm the stock pump should be replaced with a higher output
Paul is right. When my engine was quite a bit beyond stock, I used a Carter strip pump with great sucess. It looks relatively stock, is cheaper than the shiny ones, and puts out alot of GPH/pressure for a mechanical pump. It certainly wouldn't hurt a mild engine either, but may be overkill.
i have 88 engine so i dont have place to mechanical pump . the engine is not ho it's efi from lincoln town car and it stoke . i'm searching an electric fuel pump . i have bosch fuel pump that flow 245 lbh at 35 psi, so if i will install a regulator to lessen the presser to 7 it work good?
I run the Carter street pump, too. It's basically the same pump that came on the Boss 302s, and you know how they reved. Back in the early 70s before high performance aftermarket pumps were readily available at a deecent price we would go to the Ford dealer and order up a Boss pump for our 289s and 302s. I would recommend you stay away from the Edelbrock and others 6-valve pumps. As far as fuel amount required, check here: http://www.slowgt.com/Calc1.htm#FPHP
If you're switching the engine to a carb, you can switch the timing cover and run a mechanical pump. It would keep things simple for you, unless you really need that electric pump to push your gas, but it dosen't sound like you do, at least not yet.
If you're switching to a carb you don't need that high psi pump. A simple electric fuel pump from any of the parts houses will supply the fuel. Or, as stated above by Slantsickness, just convert to mechanical. The low pressure electric is simplest and cheapest. And, you can always upgrade later.
