I totally agree that kjet is fkn awesome. So much props to the guys who designed it...
The age of components is a massive limiting factor. Sure, you can refurbish the distributor and cpr, however the injectors are where this ends. They are non serviceable - your only option these days is to either blast out any crud and make do with what you have or go on a wild goose chase finding some that might or might not be in any better condition... The cost of all this goes through the roof...
Replacement fuel line is expensive and hard to find, your only bet is specialist kjet retailers. This is also applicable to fittings however you can reuse old fittings, keyword old.
Firstly, I'll admit I don't know what stock kjet is like in regards to afr's. My problem was/is having a car that cruises at 1.1 lambda and richens to stoich in boost. I'm pretty sure that's lean and detrimental to the motor. Further more it runs out of fuel at 5k rpm. This was at 5psi. Refurbed distr and cpr. All my fuel pressures and flow rates were spot on as specified. Perhaps the distributor/amm from the 2.1 doesn't allow enough fuel? Idk.
After everything I did, I was over spending so much money and I could have had a top of the range efi setup on it and making way more power, a cleaner looking engine bay, more efficient, serviceable and replaceable items, the list goes on... Saying that, at the time I didn't care about any of that stuff, I wanted something unique and that I built entirely myself.
Right now it's sitting there as a 'running' car but de reg because I lost so much money and can't afford to keep going the way I was going, not to mention blowing the motor.
Listen to what 90% of people are saying and go efi if your going turbo...
I'm the same dude you messaged on Facebook that's selling the whole kit.