I have a 1986 Trans Am with a 305ci LG4 V8, and I just bought an edelbrock 600cfm 4 barrel double pumper carb with a performer intake manifold, and performer cam and lifters. I also bought a edelbrock true rolling timing chain , roller rockers, and MSD 6AL ignition control. After putting all these one what kind of horsepower and quarter mile times should i expect? I was also wondering what i need to do with the wire from the computer that controlls my Q-jet, because my new carb isnt computer controlled. Should i just leave the wire hanging or is there some kind of way I should fix it so the computer dosen't think the carb is screwed up? any help would be great!

1986 pontiac trans am
305ci LG4 V8
flowmaster cat back with dynomax cat
k&n air filter
borg warner T5 5 speed tranny.
accel super coild and spark plug wires.

 

There are two electrical connectors attached to the carb. The choke, and the mixture control (MC) solenoid. If the ECM sets a MC solenoid code, you can try putting a 1000 ohm, 1/4 watt resistor across the two wires (available from Radio Shack) that used to go the the MC solenoid. This will allow about 13 ma of current to flow in the circuit. If the code sets after you install the resistor, try adding another resistor in parallel with the first resistor. This will allow more current (about 26 ma) to flow in the circuit. You may have to measure the current flow through the MC solenoid, with 12 volts applied to it, to determine the approximate current level that you must duplicate to make the ECM not set the code. Here's a few formulas you may need for calculations:

V = IR
P = IV

V = voltage
I = current
R = resistance
P = power

Note that if a resistor has a power rating of 1/4 watt (0.25 watts), you should only run it at about 0.2 watts maximum, for high temperature derating.


Tim