Hi
John,
If the calculators are
correct, four 550's should get you into the high 200's for HP at least. Of
course you have to do your part by making sure the mixture is correct.
From the sound of the
symptoms, it could be rich, just as much as lean. Wouldn't the simple
answer be to look at your O2 readout? If you don't have an O2 sensor, then
there's no point in wasting one of those auto tune chips on you
:-)
Cheers,
Rusty (still don't
believe four 38 lb/hr injectors will get me to top
end)