[TargaT]

OK my fellow techies, I finally got some time to get back at it.
- Checked the dwell- bang on at 38
- timing was slightly off about 3 deg- corrected it and throttle response improved (why did it change?)
- checked MFI pump alignment- right on
Drove the car and it was still really flat on power probably running at about 70% power level. Cylinder #3 popping badly through the intake.
Went out and bought a compression gauge and did a test this morning. The numbers are low but were based on a stone cold motor and and a hose fitting put in finger tight only, so I think they are OK.

The right bank 6,5 and 4 were all pretty consistent at about 120 and seem OK to me?

The left side performed differently: cylinders 1 and 2 eventually made it up to 120 but required a lot more cranking. Cylinder 3 initially sat at 90 for a number of cranks then eventually made it up to 110 and peaked.
What does all this mean? Has the cam timing on the left side gone off again? Have I lost another chain tensioner? A sticky number 3 valve or have all the clearances gone off again? What are my next steps.

Still haven't performed the fuel pressure test that I wanted to do but this certainly looks to be secondary at this point. Any suggestions we be greatly appreciated.

Joe Dren