Thread: Need help,suggestions with my 402 BB??

Tweet

Originally Posted by pat mccarthy

you do not need the diode if you have a power on and off switch .you have something screw up. if the diode is in line right it will not do any thing to the alt just stops back flow if you have a regulator you need to pull power off the restive wire coming out of the fire wall look like ss wire and has a cloth rap white in color and take this wire out and run standard wire for you 12 volts of the msd you are on the wrong leg of the switch sounds like you have it in line with the alt this will not work

It was a long time ago i dealt with that problem.I was mistaken about having the Diode in there.I remember putting 1 or 2 Diode's in but it didn't fix the problem because the Diode just broke.So your right I just have an on and off switch that runs staright to the Regulator.It kickstarts the Alternator and keeps the Battery charged.When I first bought the car I had alot of electrical problems and wires running everywhere.Its better now but I would like to have the whole car rewired for safety precautions.The way I turn my car off is by the Ignition switch Toggle Switch and even if I turn off the Ignition switch the electric fuel pump stay's on until I turn that Toggle switch off.Probably not the safest setup the way its configured right now.Thats one of the reasons besides the eratic Idling that Im afraid to just take the car out around the block.That and no Ins,Reg,Insp.

Consider the dreaded quadrajet stage 2 or 3 from jet performance out in california. It will have the smaller primaries for economy/street. Hopefully,your compression is more than 9 to 1 with this cam. If you are running this cam on pump gas then your are bleeding off alot cylinder pressure from an already low static compression.9to 1 is more representative of your static compression. The 4:11 gear is making up for the low cylinder pressure. I have used a crane powermax 282 / 226/236 534/553 112 It is an excellent cam with loads of torque and it sounds really good, especially in a 402. I have a 3:42 gear in my 3900 lb monte and it works perfectly. For some unknown reason, people like to over-gear bb chevys. They provide tremendous amounts of torque. This cam will work well with a torker or maybe better with a performer. It is important to know your static compression. I have recently gotten a hold of a 454 that is very strong and sounds good. I was floored when I pulled the heads off and discovered flat top pistons .030 below deck and 114cc chambers. This only nets 8.3 to 1 static compression...good for an rv cam.