I have a completely stock '90 with the 3.9 and I am wondering if the Jet chip mod is worthwhile without any other mods (except K&N). Anybody out there try this all by itself?
Also would it be beneficial to try to set up a later model fuel injection system or would there be too many other compatability problems?
My exhaust system is in great shape and pleasantly quiet but would want to upgrade to a performance type muffler when the time comes. Any recommendations on the muffler to buy if you don't want it too loud?
One last thing, would there be any benefit to plugging in the MSD blaster 2 coil I have in a box somewhere from another project? (I assume I'd want to get some big, fat plug wires to go with it.)
Thanks!
Jay

 

I would just go to a v8 and start from there. you should be able to get a 318 in with hardly no problem. trany should fit along with the motor mounts.