Hi all new boy here been meaning to post for a while but ive been under the bonnet fighting with me engine.
Right i bought a scooby for 500 with a blown piston on number 4 so ive replaced that fitted new head gaskets why im there fitted new timing belt matched all lines to cams dropped her back in turned her on and and it struggles to stay running if you put your foot on the gas it fights to rev and if you stick flat to the floor it wont go pass 2000rpm. So ive tried to fault find it plugs injectors and so on..... the only thing that makes any difference is if you take the induction kit off but leave the maf connected. i dont want to go buy a new maf sensor if its not that as it seems strange how it has such a lack of power?? also the engine is rocking well on tick over and at low revs. Ive checked the timing 5 times before you ask it all lines up belt and cams

Any Help would be great guys

 

that will be a maff fault

 

Or it MIGHT still be timing.

Do a search on here: there's TWO timing marks, could you be setting up off the wrong one?

 

As above - check your timing marks again.
You are using the line marked in yellow and not the red triangle to time it up ??




Mick