Tuned L31 Vortec with TBI Heads / Intake

[dave w]

I've posted a screen shot of the modifications (compare changes) I did to tune a L31 Vortec with a stock roller cam using stock TBI Heads and a stock TBI Intake. The original $42 .bin was the Hypertech 128192 chip to begin with. For a budget performance engine, I think the L31 / TBI combination makes for a good dollars and cents build! The Hypertech .bin needed lots of help with the timing table to work with the L31 Vortec roller camshaft.

dave w