I'm goin' to carb 5.3 engine and need to control spark somehow. I do have spare PCM (HPT unlocked already) and engine harneess and was wondering if it is possible to run it in SD mode for spark contro onlyl ? I know i need to use crank and cam sensors, map sensor, knocks, iat and etc sensors. But do i need to us TPS?

I rather use stock PCM (+ 2-step module) as i have it laying on table then getting Edelbrock module for over 350 bucks.
Will it work just after disabling all DTC for unused stuff.

best regards