255hp on a dead stock engine with tb's, the exhaust manifolds are excellent anyway and most on the market have been proven to lose you power.

Tuning wise there is all sort out there, some on the link I've posted below although from talking to various people who tune them there are lots of ways to get power out of them without spending a fortune.

I paid £1800 for my complete engine and 6 speed, its done 60k iirc and its immaculate inside. All told with the TB's and dry sump Its going to be a 5k package but thats reliable and IF it did ever fail its another £1500 for a new engine, not a 5k+ rebuild like it would be on all the other engines mentioned.

They fit in a mk2 nicely if dry sumped, otherwise you need to cut the sump up to fit over the crossmember, chassis mount kits are available although not hard to make the plates for the block, I've chosen to use a JEMS tubular crossmember which just allows the engine to sit nice and low as its very tall. The exhaust manifold needs modifying around the steering column and the gearbox tunnel needs to be fettled as the Grp 4 one isn't quite big enough.

No other engine falls into the price range of a F20 for the performance and more importantly reliability which for me was the reason I sold my Vauxhall and went down this route.

http://raceenginedesign.biz/



Here is a pic of the exhaust manifold gasket over the top of my very well worked xe cylinder head !