he351 upgrade is the best bang for the buck.

 

I say injectors. IC trucks are underfueled compared to the non-IC.

I put 5x.012" sticks in last week, and they woke up my '93 considerably. Its as peppy as my '90 even though its heavier and has 35" tires.

Next step is a pyro, and then find a way to cobble in this HX35 I picked up.

 

i make 450 with mine on a HX-35 with the 12cm i tow 20k-35k usualy 3 times a week through the hills i can see as hot as 1600 if you use your head and your gauge you will have no issues with it if you tow alot then get the 14cm housing hhats what i am looking at right now 64/71/14