Computer chip and ET's

[macx]

That chips basically provide more timing advance is true,
and on EEC_IV they can provide more fuel at WOT.

Adding fuel pressure really doesn't accomplish anything
because the computer compensates with narrow pulse
width to maintain air fuel ratio during part throttle, and
per www.fordchip.com, the computer looks at the last
part throttle learned info to base it's WOT on.

Check out the fordchip site - they were recommended
by more than one very knowledgeble tuner/builder
as the best.

Don't forget, adding timing then requires 93 fuel
instead of the 87. That's where a significant part
of the extra power comes from is the extra advance
which requires the higher octane fuel.

Good luck!