Seems like his built carb motor makes considerably more power than the stock TBI engine that's in the '90 truck. If I were in that situation, I'd probably do the same thing.

 

Seems too like to much of a pain to me. I'd rather drive around the 67

 

not really alot of trouble a couple of hours,.... i was showing the 90 truck to someone the other day and i noticed it had all new wiring a new brake booster and a/c compressor...with american racing aluminum wheels and when i ask whaT the employee pricing was, they said 1250.....it made me wonder.... you drive that 67 in a texas july/august with no a/c and see what you think

 

I have drove my truck in Texas. I take the A/C off all my trucks. I gain about 2 MPG doing so. Plus, does the 67 Engine have a place for a A/C pump? The 67 wold have had the old V belts, where the 90 would have the more modern style belt. Good luck swapping out all the pulleys, or trying to find a V belt pulley or pump if there is even a place to mount it.

 

Vintage Air can fix that for you.

All the accessories from the '90 will bolt onto your engine in the '67. You will need to swap the water pumps as well since the serpentine uses a reverse rotation water pump. Very easy to do. Another thing is he doesn't have original '67 heads, which wouldn't have accessory holes in them.

The fuel pump will need an external regulator but it may not be able to keep up with the volume needs of the hotter engine.

Will need a ignition feed for what I'm assuming would be an HEI distributor on the carb'ed motor.
Throttle cable may/may not work.
Will need a digital signal converter to get the speedo to work on the '90.