I built a replacement motor for my 1994 350 using a 1990 block. It did not have provisions for the roller, so I stuck with flat tappet cam. When transferring my stock 1994 intake/TBI to the rebuilt motor, I discovered the 1994 block DID have the roller provision. Live and learn...

The rebuilt motor has a Comp "RV" cam, Summit aluminum heads, shorty headers and original intake/TBI (thank-you CA emissions control gods...). I initially bought a JET stage 1 chip, which helped, but didn't fully take advantage of the mods. With the help of this forum and 3rd Gen TBI Tune, I leaned to reprogram and flash my own custom chip. WOW... what a difference. Initially it seemed a daunting task, but by reading as many posts as possible and starting with baby-steps, it all began to make sense.

My humble advice is to try and learn custom chip tuning for your specific setup and if you need help, this forum is the place to go. PS- if you want a slightly-used Jet stage 1 chip, I know where you can get one.