rpms?

[bones]

any way to get say 4000 rpm with out going efi? thanks

 

[BIGRPOWR]

nuetral drops ?

 

[2001cummins]

I dont know much about it but i have seen the smarty ssr. Goes 4k.

 

[Samaras Diesel]

smarty ssr with udc or efi take ur pick with the smarty ull keep all your guages with efi u take the chance of looseing them if its an 03-04....