[JeremyG]

I'm gonna chime in really quick...

When I installed my 680cc injectors (the PTE ones really more like 640's), I got knock. Timing at WOT was OVER 40 DEGREES! I'd IMMEDIATELY get 15-25 knock sums (at like 3psi!)

I pulled my base timing to around 2 degrees BTDC and now getting more like 30-35 degrees, the car pulls like mad and now less than 10 knock sum. HOWEVER my problem now is that I have NO low end. The car is like an on-off switch. No boost, feels like an SOHC (not joking). Boost and all the sudden the tires break loose from the power (not joking).

The datalog shows almost NO timing advance until boost comes on and then IMMEDITALY up to 30degrees. That's where the on-off switch effect happens.

Anyway, what I'd like to add is that I had this problem with the stock MAF and ALSO HAVING IT WITH THE LS6 MAF and MAF-T. I think it's a little bit less, but still the problem is there.

So my conclusion is that gutting the MAF can't have much more/better effect than putting in the LS6 maf combo.