'67 Short Step #2

[longbed67]

Just read a little bit of your build here... a few fixable issues that might come up for ya. First a .48 turbine a/r is appropriate for an engine half to 2/3 the size of the 250.... which means you will spool right off of idle good side of this is LOTS of power down low!.... bad side of this... dont plan on taking her past about 3500-4000 rpm otherwise the backpressure and heat will become so much your likely to break something. the next comes in with your carb a 390 DP carb is great N/A on these engines but with a blow through a step up is needed as it will be much much harder to tune. I spoke with CSU and they would use a 750 with this motor, but said anything 600-750 will be much more tuneable. I went with a 600 because jet sizes and PV's will be much closer to what is needed right out of the box

[kyull67]

Pushed the truck out for a wash and wax, put a new part on and finished the downpipe welds.

[kyull67]

Originally Posted by longbed67

Just read a little bit of your build here... a few fixable issues that might come up for ya. First a .48 turbine a/r is appropriate for an engine half to 2/3 the size of the 250.... which means you will spool right off of idle good side of this is LOTS of power down low!.... bad side of this... dont plan on taking her past about 3500-4000 rpm otherwise the backpressure and heat will become so much your likely to break something. the next comes in with your carb a 390 DP carb is great N/A on these engines but with a blow through a step up is needed as it will be much much harder to tune. I spoke with CSU and they would use a 750 with this motor, but said anything 600-750 will be much more tuneable. I went with a 600 because jet sizes and PV's will be much closer to what is needed right out of the box

Thanks for the input!
I'm not looking for a ton of power here. I agree that turbine is a little small, should work for what I'll be doing. It'll be like driving a diesel probably.
I use the carb shop for the mods, they suggested buying the 390 DP. It'll be dyno tuned before I get it so lets hope it works.
I'm really just trying to get this thing running and then most likely start building another engine/setup.