so swapping to the 93 head & cams as a unit (which I can do) is the way to go then eh... they are worth upgrading to, right?
I might try the head & cam upgrade and actually do the computer first to see how much of the drop off up in the RPM band is from pig-richness before deciding on header sizes, lengths, etc. I figure it may not be alot, but it'd be best to know before shelling out $$$ to my fabricator friend if it shifts 500-1k rpms or something
I'm probably looking at an operating range of 4,000-6,500 with the stock trans gearing and final drive. I'd be nice to have torque peak about 4500 and have it hang on to decent torque out as far as it can after that... would have a nice punch off the corner, after each shift and hopefully pull the gear well on top of that
6500 would put realistic end-of-straight speeds in the high 120s, low 130s which is right where it needs to be to run with these guys door handle to door handle into the braking zone where the mid-engine weight distribution & those great MR2 brakes are going to kill 'em