FYI the chain auto parts store will lend a combustion gas analyzer kit for free( deposit and return the money).
When you conduct the test, be certain not to allow water/coolant to contaminate the test fluid... that style tester makes it very easy to do so. I prefer the multi compartment style because of this.So I saw. I copped the NAPA one. Home delivery due tomorrow. Paid primo for THAT, but I wanted it quick. Soon as I see it turn piss yellow, and it will, I then can start tear-down without any qualms.
When you conduct the test, be certain not to allow water/coolant to contaminate the test fluid... that style tester makes it very easy to do so. I prefer the multi compartment style because of this.
As said before, usually it is available as a loaner tool. You can test the color change by cupping your hand and exhaling as you draw your breath into the tool... it tests for CO2 concentrations... then you can pump fresh air through and the fluid will return to blue and can be reused... careful not to dump used fluid back into the bottle if any possibility of contamination exists... even a drop of water can ruin the fluid.
This test require the thermostat to be open or removed... and patience... I spent an hour once using this to PROVE a failed head gasket that I knew had failed. Also, in the unlikely event that the head has warped or there's a crack somewhere... similar results will be shown... so inspect everything carefully upon tear down to make sure you don't waste you time and parts.
If you can, cancel the head bolts... unlikely you will ever NEED them. Even many torque to yield bolts used on later engines could be reused if they were measured for bolt stretch and in spec. Sorry I'm late to the party, but hope I've saved you time or money here.
make sure the coolant level is an inch or 2 down in the upper radiator tank...this will give it room to expand ...you'll want the coolant warm but not at the point that it starts boiling or it will overflow and you'll suck coolant into the tester
Hey Jerry, I don't want to come over as a know it all, but not that long ago I had a similar issue with my ride running hotter than it should. Someone suggested I "test" it with the choke partially closed. This can be done with bailing block with those fasteners. ARP bolts are good, fine quality, but maybe overkill on a stock motor. Your garden variety parts store replacements should serve well enough.
Just my two cents. Take it for whatever it's worth. I'm just trying to share my wealth of knowledge, wisdom & experience. "Those who fail to learn from history are doomed to repeat it".
I have an Edelbrock 1405 earmarked for this machine already!
Good call on the Eddy squirtbox. SuperDave approves. If dialing up the idle mix screws yielded positive results, you're on the right track.
If I may be so bold, I recommend ordering a rejet kit for this, along with a vacuum gauge to assist calibration. The Eddy name-brand kit comes with color coded springs and properly labeled jets and needles. I bought a Chinese knockoff kit for a fraction of the price and ran into snags. The springs lack the color coding, & with my experience with Chinese "stuff", I measured the needles with a micrometer that I just happen to own. Guess what? They're incorrectly labeled. Not by much, a few thousandths of an inch but enough to throw the calibration tables off. Not only that but the short leg of the L on the needles were a tad too long. Easy enough to correct with a file, a Dremel or a bench grinder. So it runs a tad richer than expected, to be honest, that worked for me. It did what I needed it to. Just a word, buyer beware regarding the cheap Chinese rejet kits hawked on fleaBay. If you intend to use the springs, it'll be trial and error to dial it in right. Save $30 and expect to spend a few hours extra labor to make it work. Or buy the Eddy kit, follow the instructions and be done quick like.
If it were my daily driver and my only set of wheels, sure I'd pop for the Eddy kit. But Project Turd is my "Hobby Car", & I enjoy spending time wrenching on it. When I do dial it in right, it comes with a sense of achievement & pride that the added expense and ease of a bolt-on product doesn't quite deliver. Sometimes you just wanna do it yourself, ya know?
Good luck and good wrenching to ya. Keep us posted on your progress.