i have 1984 3-speed that had 305 but put in 350 but gear ratio is too low what is recommended for better highway rpm but still good performance
What rear end gears does it have now?
It has 4.10 rearend gears
Either change your gears or you can used a 700R4 overdrive that will help your low gear problem.
Looking for a Used El Camino in your area?
CarGurus has 221 nationwide El Camino listings and the tools to find you a great deal.
Search Chevrolet El Camino Questions
Chevrolet El Camino Experts