Got the Zenith installed...man what a difference. Runs like a champ. Lost just a little punch above half throttle but not surprised going from a venturi that was badly undersized. The low to mid throttle response, smooth running, and much better fuel economy was well worth the little loss above. May do a little tuning on it just to see if that makes a difference. As a side note, if any of you are trying to locate cup grease, or the closest equivalent that exists today (lithium soap/mineral oil) for your distributors, speedo drive, etc...I found this. Can be ordered off Amazon and other places. See pic. Also got the alignment and gear box adjustment done...drives absolutely straight with zero wandering. It's a pleasure to drive now. I'm going to say I'm pretty much done with it as is. Itll be a little while before I have a chance to get the 302 done for it but I'm in no hurry.
Being a stickler for details...it has bothered me that the temp gauge on Shop Truck wasnt reading accurately - way too low. The reason...temp sending units for 70 yr old 6 volt electrical systems and gauges are non existent...or have a completely wrong impedance. So the fix...get the engine to known operating temperature of 170 degrees. In parallel, run 1 wire to gauge and a second wire shorted to ground. In the second wire, stack resistors until the gauge reads 170 (accounting for voltage drop in the 6 volt charging system at idle), then soulder the resistors together. From there, if the engine gets hotter, the sending unit will continue to function normally and taaadaaa....we now have a perfectly celebrated temp gauge at 94ohms worth of 1/4 watt resistors. Pics are just showing my testing with different resistance to narrow down which to use. 2 47 ohms did the trick.
I was gonna go that route because mine was originally a electric sender on my 49 gmc but I ended up just swapping a mechanical guage into my cluster but i used the original weathered looking gauge face so you cant tell. Its surprisingly accurate when comparing the reading on my scantool from the obd2 port.
He did an awesome job. Completely custom. Chose the 3500 rpm range, 6v and pos ground. Works awesome. I'm hesitant to share what I paid, he may have given me a dealer price. May be best to call him, tell him you saw what he did for me, and get a quote. Thanks for the compliments on it.
Also...I started the tear down of the 302 and uploaded a video on you tube. You guys asked me to update ya, so heres the link. Have a look if you like. Anxious to hear what you guys think. The video is mainly intended for the who aren't familiar at all with these so much of it some of you may already know.