1991 4.0l Camshaft kit

[asterof]

Any one know of a good performance boost camshaft kit
to fit my 1991 2WD 4.0.
I am looking for a little more mid range power that can still pass smog
and perform with the stock system.
I have had the engine rebuilt with aftermarket parts including
pistons with a little more silicone in them.
I think i need the camshaft, roller lifters and spring set.
Thanks

 

[freetodragdoors]

check out comp cams a few members have used them

 

[Anime]

Comp cams has what's known as the 410 cam for the OHV 4.0, sounds like it will do what you want, but depending on what other mods you have, it may or may not pass smog. There's a double spring set for the cam, but sometimes head work and now-hard-to-get spring retainers are needed to make them work. You can use the stock roller lifters, if the originals are in good shape. New ones are about $50 each, making a set of 12 rather expensive.