Timing & A/F Ratio

[Lorenzo]

finaly made it to the track and would like a little input. I have a freshly built 231 with standard TRW forged pistons. A 218/218 hydrolic cam, fully ported heads and intake with big valves. A 70GTQ turbo with .85 exaust housing, modified fuel system with dual intank pumps and 83lbs injectors. A front mount intercooler with 3" pipeing, Terry houston down pipe with a full 3" exaust. I am useing a turbo 350 trans with a 3500 stall and I am tuneing the car with a Big Stuff 3. I am just learning the Big Stuff3.

What should my timing and A/F ratio be set at if I am running 116 octane gas with no alky.

 

[Lorenzo]

Bs3

Thanks Cal for the information you gave me. You are a great person to talk to for tech information.

 

[jasjamz]

What did you come up with??

 

[bison]

i run 27 psi and 22 degrees timing with 110 octane and a dual nozzle meth kit. Target af is 10.8-10.9. Id go to 24 degrees if i had a bottom end that could take more. Comp raito is about 8.3:1