Carburetor, MSD, Holley Sniper EFI questions

Kipprc said
It may be a bear, but I believe I can do it. Its more about learning as much as I can before I do it. I have the fuel system and tank. It is the areomotive setup. Thats why I wanted to know if there are any benefits to getting rid of the mechanical fuel pump. I may run the tank for a bit without the Sniper. Then later on I will buy and install the Sniper.

Now the trouble shooting of cold starts, hot starts, and dies while driving absolutely have me concerned. I want to go to EFI for easier starting. The car takes a enough energy to start already. I also would like to take a few road trips and I don't want elevation, etc. to cause me problems after sitting overnight. The wiring on this car is pretty old. Starting the car I have to pump the pedal 3 times, turn the key and keep my foot on the pedal for a minute or two. After that the car may decide to stay on or it may cutoff. I am willing to do what it takes to stop doing this dance with the car when I want to drive it.

Kipp you will need to get rid of the mechanical pump with FI as it requires 60psi and that pump would be lucky to push 6 on a good day . I’m running the Tanks inc tank with the Walsbro 255 in tank pump. New 3/8 hard lines than braided 6-12 inches each end . Ignition is 6AL with msd distributor not ready to run . Msd 8.0 plug wires are a must as they are the best to use and give the least issues with rfi. I’ve had the system on my car since early March last year and has been faultless but in saying that I haven’t been controlling spark just fuel only and setup distributor curve with springs and those little advance round spacers provided with the unit. I will one day go with the control timing as for now it runs so well and I don’t want to rock the boat as they say !. Ok so your committed best advise I can give is read the setup manual follow it to a T keep dirty wires away from all other wires meaning distributor and coil Power wires. Remember RFI EMI are your invisible enemy as your snipers ecu lives in the throttle body and is exceptable to any noise. It’s not hard you just need to get your head around it all and understand it Take your time in running the loom properly, you must have good earths ! when attaching wire ends do not just crimp only solder crimp heat shrink what your doing is eliminate any possible problems that can pop up . Don’t use the rubber fuel lines provided run hard lines feed in and return only use in small lengths with AN fittings . Last thing weld that 02 bung in don’t use the kit they supply any exhaust leaks prior to 02 sensor will spike the system lean and that girl will dump fuel . Make sure the engine is mechanically good as if it burns oil leaky exhaust you need to address these first as these systems are a little more temperamental than what your carburettor will let you get away with. Sorry long post good luck grass hopper on your adventure.