Anyone out there have any spark tables they would like to share or compare? I'm in the early stages on tuning my '87 Corvette that recently got a heads/cam/intake/exhaust redo.

The chip in the car now is adding some crazy 40* of timing at WOT. I have set my base timing to 0* to manually pull some out and got it to 37.1* at WOT for now until I get the time to burn a few chips.

I am told that 34* is where the superram setups seem to be happy.

The car is trapping 109mph right now which has me very happy for not even tuning it yet.

Thanks for any suggestions!

p.s.

It is a 219 cam w/1.6 rockers for 219/219, .560"/.560", 112lsa

 

Max WOT timing is alot more a function of combustion chamber design then manifold design.
Manifold design contributes to the aoverall spark table, but so does cam, and vehicle dynamics.
You're better off starting frm scratch rather then building on something even 1/2 right, since the other 1/2 might be misleading