Trying to help a friend tune his car.
77 Nova full swap. 6.0 block bored .060 over. BTR stage 3 cam, Fast Lsxr Intake manifold, Fast 102mm Throttle body(cable), Long tubes, Standalone Engine harness with stock 01 Suburban ECU. 799 Heads. Approx 11:1 compression.
I've tuned several other vehicles with little to no issues, but having a hard time here. Car will fire up great but within a few seconds die right out. We have tried opening the throttle more, adding fuel, taking away fuel, changing idle spark, all with no luck. I've got to be missing something simple.
I went step by step through another forum members startup and idle airflow guide and still no luck.
When it does start, moving the throttle blade makes almost ZERO response.
Attatching the Current tune and a startup log. The second start I try to give to throttle so that you guys can see that too.
NOVACURRENT V0013 airflow tuning, inj data.hpt
2 start attempts.hpl