Hey Dave thanks for reply. Couple quick Qs. I have a ‘88 TPI 350 with a 176 ECM. Say I was to install heads, headers and cam and want to tune the prom myself. So, hypothetically car is back together, I go to start engine to data log and it starts but won’t stay running to data log how would I go about fixing that? Next question. Say I got the car started, data logged and went home and had the data log pulled up and edited the BLMs to + or - 5 of 128 is that considered done for BLM side of things? Next question. If my BLM is right does that mean my part throttle tuning is done? Last question. If my BLMS are correct and applied to my new chip, what would be the next step for my tune? Thank you.