I was wonder what is the most anyone has ever gotten out of their 420a with out turboing it. I have seen plenty of sites to beef up the motor but I was just wondering what you could even getout of it after spending what all they are asking.

 

this has been discussed alot. The fastest i think was either a very low 15 sec or a very high 14. I dont remember if the guy got to the 14's or not. But the amount of money spent in doing it is not even close to being worth it

 

without TURBO'ing it? hell with a really good build, nicely set up head and a good shot of spray you could get up to 350 no problem... if you are talking completely N/A though.. i'd say190-200 being the max this engine will see... and we are talking about an easy 4-5k motor! definaly not worth it when you can spend 3k and turbo it.