Hmm, must come in here more often ...
One month later and nothing in this post.
Now, if I had been in here could have suggested that this fellow is going down same stupid path I went down. Leave the 200 alone, poor thing
Been there, done that and find most in here play with sixes and eights and rarely fours, let alone turbo fours.
I had a beautiful set up of a 200 mounted on the throttle body with turbo blowing through it on an 1800cc flat four- near undriveable due to intake pulses of a turbo four cylinder create havoc. I mucked about with balance line internal diameters and found the smallest the best, but still poop to drive. Flipped it all about into a turbo sucks vapours through it and not looked back - getting perfect emissions at tailpipe past the cat. Precat is a bit rich if anytthing and is gonna get a leaning ring next drive. Done 80,000km on this propane system set -up ,and about 2km with turbo blow through.
Curious to see how you go. 22R is Toyota something isn't it ?
I see non IMPCO air valves are just blank, no indicator of what it is rated, no tip mark, no hand written gradings, nothing