Help choosing injection method for 4G63 motor

[keithmac]

Pitviper, that`s a good setup, only problem you have there is the time it takes to purge the air out of the lines after the manifold has been under vacuum. Best bet would be a checkvalve as close to the injector as you can get it (x4), but this will reduce flow sightly.

I tried similar with a single checkvalve before the split into 6 jets on mine and the vacuum would empty the lines after the valve very quickly.

If you`ve tuned around the lag problem then you probably won`t need to change anything.