i have an 84 camaro with an older engine (70s) and no computer
I want to hook up the Oil presure and Tempature unit to my stock gauges how can this be done, all the other gauges work fine

 

Put your stock senders on your new engine.

 

stock sensors are LONG gone and I don't know what wire is supose to go from the unit to the gauges

I can see buying a temperature unit but what about the oil pressure one? is there somewhere that can tell me all the places on a sbc I can put sending units?

 

Go down to the parts store and get some new ones then.

A coolant temperature sender can go in any port that has coolant behind it (usually the ports int he head), an oil pressure sender can go in any port that has pressurized oil behind it (on the top of the block beside the distributor, or above the oil filter).

 

is there a way to find the gauge wires under the hood WITHoUT puling apart the dash??

 

Check the wiring diagram for the car and find the wires with the colors listed. They're both single wire connectors.

 

im looking at that now but im sure theres more than one dark green wire under there