had 73 pinto wagon 2000cc with a air research to4 turbo. copper o-ringed head; water injected,.weber two stage corvair turbo exhaust about 11#boost dry pavement at 30mph both hands on the wheel wet pavement stayed out of boost turbo went south put it back stock except for the exhaust it wasn’t ca, smog legal we still had the guestopo highway check points
Yes... the V8 Pinto was just flat dangerous. lol
We took a wagon the same as yours with the cast iron German 2000 motor and did similar to what you did. We shaved and ported the head, Put a cam in it, headers, and machined an aluminum plate adapter for the intake and mounted a set of 4 aftermarket large bore rejetted Mikuni carbs for a bike on it.
This was in Ca, but a little town and we only had to smog for a transfer. We dyno tested it at just under 300HP around 8k. Now that did very well because it wasn’t heavy in the corners but it also did not like wet, You just didn’t think about starting it if it looked like rain. lol
I remember those CHP ambush smog check things. It was funny, they would set them up in a spot where you could not turn left or right after you spotted them. End of the day, the road in front of the check station would have “broken down” cars parked all over the place.
Later on they had those stealth “sniffers” on freeway onramps checking your exhuast gas and taking a picture if it came out illegal.
Those biennial smog checks before license renewal pissed me off. They were not interested in how clean your exhaust was, just what epuipment violations they could find.