I ordered a Mattituck TMXIO-360 with roller tappets, a forward facing sump, Airflow Performance Fuel Injection System, dual p-mags, and an alternator. The engines come

Here is how Mattituck describes it:

Your TMXIO-360 engine will include New Lycoming cylinder assemblies, the new roller tappet technology, our full Red Gold Performance Package, 2 New P Mags, harness, and aviation spark plugs, a 12V Sky Tec lightweight starter, new fuel pump, a new Airflow Performance Fuel Injection System, inner-cylinder baffles, dipstick tube and dipstick, oil filter adapter and oil filter, new dynamically balanced VAR crankshaft, static bay balance to within 2 grams, vacuum pump drive adapter and drive, starter gear support and ring gear, engine logbook and operators manual.

Now, just need to get myself a prop and the firewall forward kit from Van's, and I'll be just about set.