OK...Lets start with the truck itself...It is a 1967 K20...built in Oshawa....When I google production numbers, I find a hyphen for units made, (I have another post on this)...leading me to believe this is a pretty rare truck. There is also evidence the originality of this truck suggests, that it was in the possession of the original owner up until several years ago.....then it changed hands twice before I got it.....This truck is a 100% survivor with 100% original paint, even down to the original Harrison radiator. Unfortunately I was unable to obtain any history on the truck. The guy I got the truck from was vague in providing any details of who he got it from, other than it was obtained from an estate..The guy I got the truck from said he could never get it to run right and said the carburetor needed to be rebuilt. I had no intention on another truck, but the attraction was the originality and the fact it was NEVER MONKEYED WITH....I had my fill of undoing crap with vehicles that fell into the wrong hands..I was in my late teens when these trucks were new. I worked for a GM dealer that had a 68 shop truck, with a 250 3 speed and that truck never gave an ounce of trouble....I can almost bet my life it had a Rochester....I can hardly recall any Rochester issues.... I have a 72 GTO which I bought brand new with the original quadrajet that often lays for a year or two at a time, and I never had the carb off the engine. I get in, set the choke with one push to the pedal, it cranks, fires up on high idle, warms up, & I kick it down.....PERFECT .....I also know that time & age plays a factor, along with the differences between NEW & REBUILT.... and I know I'm on a rant here but, I got off track with 'Options' where my inclination is always originality ....This vintage era GM was the high water mark...So my point.....There really is no reason to to find alternatives....I know there's a tiny fragment of issue with the Rochester....My plate is full with other real life responsibilities.....For desert, I will find the time & opportunity to take apart & dissect this Rochester with no interruptions.....and am confident that it will once again it will perform as it once did...I Thank you all....