Cal-pac

[Boost231]

which calpac do i need to run in my ecm when i have changed over to a 87 ecm setup. im currently running the orignal 87 cal pac and it runs fine but i was wondering do i need to use the one out of my 84 ecm?

brent

 

[dfisher]

Yes

 

[Boost231]

ok

why do i need to use the one out of my 84 ecm

brent

 

[dfisher]

Sorry to confuse you . I guess the right answer is they both will work. Used both is a 84 set up with 87 ecm a while back.