Hi All, I think I might not have made myself clear on the machine work I'm going to get done on the heads and int/exh manifolds. I am -delaying- the work, not skipping it entirely. I most certainly do want to squeeze as much power as possible out of the little PRV, but I do want to get it finished first. The folks at my dad's company who will be performing the work will be doing so on a "when we get time" basis. There is no estimated time of completion. It might be a month, but then again, it may be well over a year. It would be a lot easier to wait, if I knew I only had to wait until a certain date, than to always be wondering when the work might be done. I have a spare set of heads and intake that they will be working on while I continue the current build-up, so in actuality both will be occuring at the same time. If they get done sooner, I'll bolt 'em in. If not, I'm covered. This also gives me time to explore a few other items I'd possibly like to try: Renault Alpine low-compression pistons and higher performance cams (better with the turbos), and possibly parts from the 1990/91 Dodge Monaco / Eagle Premiere (3.0L PRV w/EFI). Why go to all this trouble when I could get a lot more power out of an engine swap instead? I personally favor making the most of what you have. To me, modifications are more of a challenge than a swap. That's not to say that I wouldn't love sticking a 440 Hemi or perhaps a Chevy LS-1 454 Aluminum block back there, because I would! I just get more of a challenge squeezing blood from a stone. I made my '79 Chevy Monte Carlo get 375 HP peak on the dyno, and got 29 MPG highway out of her to boot. I'd like to try for 300HP/25MPG on the Vixen. Anything is possible if ya' give it enough good shots. For me, pulling the heads is only a day's job, and maybe $60 in expenses. I think it's best to get the current setup working well first, than wait indefinitely to go whole hog. Even a whole hog starts with a little piglet, you know... =) -Dave Stragand, #5927 dave.stragand [at] ketchum.com http://ProjectVixen.com