340 street build help from experienced input

@Cmanhattan I want to apologize for missing your 6,000 ft altitude. IF! You see a shelf cam that fits the bill, mostly.... ask the cam company to narrow the cam up for what AJ & cpearce was saying. Getting that adjusted is cheap and more of what will help the engine out in a few fronts.

Just food for thought.... if this route is within hour wallet... a low first gear trans would be a good swap. IIRC (and I would check this!) a 3.09 first gear non OD trans was available. This would really help out a lot for the initial get up and go factor. Coupled with the adjustment on the cam it should really be quit nice.

I’m down near sea level. Living on an island that doesn’t leak very high. I can squeak by on a few items that I would seriously consider doing in your area.

If the wallet was thick enough, I’d look into an OD trans with the 3.91’s rod that Hwy. drivability. Perhaps a 5spd manual. It will turn 3.91’s into 2.70-ish ratio. Ideas for the future.....