Loving all the input here guys...it's good to get as many ideas and opinions to help decide what to do...especially for someone like me who has never built one of these type of engines.

LPG is not a definite at this stage it was just a suggestion/option...so we will cross that bridge when we come to it.

I myself kinda already knew that using Morrows motor as an example was not really relevant as I had already assumed that it was a highly developed engine which costs a lot more money than most of us are willing to spend or rather way too much to put into a street car. But I suppose it can be used to demonstrate the Z18ET potential.

Looking at both setups (A15 EFI & LZ combo) on face value it appears that the A15 would probably end up costing more with a not so good or not good enough result...for me anyway.

It appears in the other hand that the LZ would be inexpensive to put together...more reliable and more power and potentional...more performance upgrades/options.

My goals are to have a car that is both very quick for most street cars but yet still very drivable if I want to drive sensible with some level of comfort...not like a pig.

I plan to take it around the track once every blue moon. I want the car to be able to be driven daily of need be so reliability is big for me.

I'd be extremely happy with somewhere 180-200kw atw. A 12 sec pass down the 1/4 mile would be even better...I'm not sure if those figures compliment each other.

I'd like to find a combo that can achieve all this but weighs as little as it needs to be and nothing more.

As this build is going to be over a big length of time, the cost isn't too much of an issue for me.

Now you all know exactly what my goals are. Whether they are achievable I do not know...which is why I'm here. :)

Keep the comments/opinions coming.

Cheers, Joey