Racers look here to help a newbie -Thanks
The best plan of action might be decide on the class and ET and study the cars that run it. I've seen the ETs but you're tossing around three different suspension ideas and two powertrains. A lot of friends that bracket raced in the past started in the 12s and went as far as 10s over years and small changes and improvements in the package. Guys that built a purpose built car started 10 and inevitably wanted to go faster. The problem is going into the 10s isn;t much different than 12s when you talk about improvements that are bolt-in. Going 9s is very different from 10s in terms of cost, commitment, reliability and repeatability. That's why I look at future use too.