Hey guys just got the 4age running in my ke70 and went for its first short drive yesterday, so it idles fine after we played with the dizzy for a bit but sounds like a wrx under load anyone know what the go is? Also hasinimal power almost like running on 3 cyl. :( van anyone give me some advice on what to check?

You are probably right, that Subaru sound is very 3cyl.

 

Carbs or injectors? The fastest way is time on a dyno as you can measure the electronics one by one under load, check plugs firing, coil, & injectors etc. All it needs is a plug or lead breaking down under load.

 

Start with compression tests, then a "plug cut" check after running it hard in 3rd for 3 or 4 seconds. Check plug lead resistance with a multimeter, but none of these are as good as reading the motor directly under load. Borrow a Megasquirt!

Thanks man ill give them a crack today, not sure if map is reading properly either and gotta regap plugs too

This is my bible at the moment (except it contains useful information).

Holy shit man that's gold, been looking for a manual for ages cheers