w3s1c0a5t

iTrader: (3)

Asking for a buddy.

Is there anyway to control the optispark with an ignition box without the ecm? Going carb and already has msd opti spark coil and wires. Trying to keep it simple.

shbox

The opti is not something that you control. It provides signals/data that is used by other electronics for spark control.

96capricemgr

iTrader: (1)

NO.

You want to keep it simple use a Gen 1 if this is a retrofit, or keep the pcm if this is an original LT1 car.

w3s1c0a5t

iTrader: (3)

I worded that incorrectly. My apologizes. I was trying to ask if you could essentially replace the pcm with an ignition box per say. At least as far as timing is concerned.

Has anyone used the PCM to only control timing by chance and left the fuel up the carb?

The goal was to use the parts he has in a relatively simple manner along with the carb setup.

shbox

An ignition box does not have the necessary components. It would have to be another engine management computer. I don't think you can mix that with a regular carb.