Mike, yes I have done all of this
Sorry flash but doing the mods I have done have definitely netted me more then half of what a supercharger kit could do. Well not all supercharger kits, just one you were referring to that would get about 250hp. I'm sure its possible to design a system that could get well over that, but maybe not quite reliably.
It was all done by Lindsey Racing. I can get the sheet on the headwork and cams to list all the stuff they did but it did cost a pretty penny. Not anywhere near 40k though. I'd say under 10k I cant quite remember
I had a dyno sheet, but the car was running very rich and much slower then it is now and STILL made 180 RWHP. So at the crank its getting up there in terms of HP. I'll see if I can track it down. I don't have the dyno sheets to prove but thats what I remember. I will be getting it dyno'd come spring so I can get the chip programmed by Russel to be more accurate because its way off right now. I'll also be adding the S2 manifold.
I kind of forgot about the dyno sheets because they had so many issues with the chip and AF, that when I got the car the FQS was cranked up to 9% or so. When I decided to investigate the rich issue and turned that switch down, (its currently at -3%), it REALLY woke up. So I'm not sure what a dyno will show now. However, when I do get it done and everything settled over the winter, I'll be sure to post a dyno sheet so nobody thinks I'm crazy!
From the bill:
Head:
Complete rebuild.
replace valve seats with 968 seat
competition valve job (5 angle)
port and polish,
968 intake valves.
Cams: Webcamshafts grind# 278/264
Valve lift:.441/.398
Duration: 244°/233°
Duration @ .050": 227°/216°
*No idea what these numbers really mean, posting for those who have more knowledge, info taken from webcam website*
Exhaust:
MSDS headers from Lindsey Racing (made for S2 but adjusted for my car)
3 inch and 2.5 inch parts to reduce noise
No Cat, just resonator and muffler.
Intake:
Cone fitted under the nose (no idea if this actually does anything, but its how I wanted it for cooler air.)
Chip:
Maxhp - Russel Berry
Misc:
Soon to be S2 intake manifold.