12.5:1 is massive power... explosive power... if you have all the other supporting mods... like p&p, box mani, 60mm tb, crane 18's and up, Long tube header.... then you have to look into the fuel system and basicly run a return line just like a turbo with a rrfpr... but your looking at the 200hp mark with that type of setup...

HOWEVER... streetablility goes to hell... good luck tryin to keep it under 35...

 

who does 35 anyway?

 

I know... but the throttle response becomes so sick that its like stop... 40mph before you know it...

There are about 5 sets of 16.5:1's floating around that you can find for sale every once and a while and they normally go for like 3000 bucks or so... not streetable at all... plus you have to knock your block out .120 yes that is .120 not a typo...

 

but just imagine the take off power!!

 

ok well since you didnt check out that link

Shorty Header : 8 Whp

2.5’’ exhaust: 6 whp

Mopar Performance PCM: 6 whp

Underdrive Pulley: 2 Whp

Larger Throttle Body and spacer: 5 whp

Cold Air Intake: 2 Whp

so those came from that link... i figured i would share... and the long tube should add more then the short header.. but i think it adds more torque

 

i checked out the link but still after all thats said and done its only like 10-12 hp over stock.

so if i were to buy the rebuild kit on modern and get .02 overbore and run 12:1 compression i would have to run a fuel return line and rrfpr and build the top end before i can drive it? i thought i could just buy the bottom end rebuild kit and drive like that until i had money for the top end rebuild kit. and i would have to run crane 18's those are huge. if i use 18's then will the kit have everything i need to safely run them? lots of questions sorry. i would rather be n/a then turboed.