Fuel pump change should not change fuel pressure if the fuel pressure regulator is working correctly. That being said i see you put a 450 in, but as i recall only the awd need's the syphon mod done to bring fuel pressure down i don't recall the...

The ones you find now are either in very rough shape or quite expensive. They are out there though.

Start with base settings. The 1350's are the high impedance? If so then you have the injector resistor box deleted? Then do you have a data sheet on the injectors? If you do use those in the inj bat adjust, if you do not leave that stock. Then...

Tune is a must with any cam's, even without cams i would say a must. These cars do not do good without proper tuning.

Well we do not baby the break in ourselves. Usually 1 heat cycle varying rpm from 2-3,500pm till warm then shut it off. Gives up time to check tune settings, leaks re torque stuff hot. After that it goes right to boost and decel in gear so the...

Something mild. GSC s1, hks 272, ect. GSC s2 would be a little to much top end IMO. Over the last 15 years we have used 264/272 hks, 272/272hks, GSC s1 s2 s3, BC 272, 280 , 288. Likely more i am forgetting. Goals like that s1 or 264/272 hks would...

Have to figure out why its spinning. Then anything that touches oil coolers turbo ect all needs gone threw. Then when everything needs checked. I rarely use plasti as i prefer to mic the crank then torque the rods and mains and measure with bore...

A good remote tune is fine, it will always leave some on the table vs the dyno so unless you are trying to get every inch you can you are fine. I have seen many many bad tunes from shops with dyno's and remote tuners who do great tunes. Most of...

I would change the pump as i suspect you will turn the car up. The larger 450 and 525 pumps have there place. We like them but yes they have there drawbacks, as i recall the 255 walbro's we have used in the past max'd out around 425-440whp on e85...

We never have had issues with arc2 box's either honestly, one is on a 6466 10:1 car stock coils, ngk 7mm stock wires at 37psi right now. Myself and a buddy both use them with 300m coil on plug and have been happy too. I have noticed some low rpm...

The thickness is 1/4" (approxi 6.3mm).

Like some have said when you hit 100VE you know your injector settings are correct and fuel system. So then making it hit the target air fuel with VE table shows that the ecu's calculation of airflow and fuel it adds is correct. No trickery going...

Very low timing. The air fuel ratio was fine but technically lean 1 point from your target. I would adjust the DA table to reflect the air fuel target you want then adjust the SD table to hit it. Looking at SD table i am going to guess that will...