Doin it again

[Mr.SWISS]

Swap your 1-3 and 4-6 o2 sensor. See if the misfires/codes follow

No dice, it seems it's running out of fuel over 4K. I hooked up the pressure tester and started it and it went to 40 then as soon as I touched the throttle it jumped to exactly 50 and as I r3ved higher it started to drop down to 30 and the engine cuts out. Boggles me as it was running great a few days ago....

[Curt Hayes]

Four months on and I'm assuming you got it fixed. Regulator or fuel pump?

[325ix]

Are you planning on boost if you put in arp head studs and a cometic gasket?