Found some time to work on this 305 again. I fixed my stripped thermostat bolt hole a few months back. Had RockAuto supply me with neccessary gaskets & parts. Click on the pics to see enlarged.

Cleaned entire intake valley as best as possible with laquer thinner and mineral spirits. The expected grime was not as caked on as I thought before ripping the intake out so thats a good sign.


RTV'd rear china wall with GOBS of Permatex Ultra Black Silicone Gasket Maker. Don't worry I filled in the right corner as soon as I took this pic.


RTV'd front china wall. I hope this is still enough to prevent leaks.


Gently seated the TPI intake over the gaskets with little movement to align the bolt holes and did a 20/30/45 lb torque sequence on the bolts in a clockwise circular pattern. Why 20/35/45 lbs? I figured the 1/2 inch extension on the 9/16 socket I used would create an erroneous setting on the click type torque wrench. I found the formula supplied within the tool instructions and adjusted for good measure.


Fuel rail prepped with new seals and injectors. Decided to upgrade the stock GM Multec injectors with the Fuel Injector Connection's Ford yellow design ( I think they're Bosch III's and the clip grooves were not available ). Plus I'm leaving the stock fuel pressure regulator alone since I've read these 19# injectors don't need the prom burned for it. I painted & baked the runners with high temp primer. Afterwards Krylon metallic to complement the intake. Plenums next but I want this 305 to fire up asap!


Distributor rotor orientation fell in EXACTLY where I pulled it off. Best part of my day so far!


Feedback or questions welcomed.

 

I talked to Jon at Fuel Injector Connection about fuel pressure changes and injectors. He mentioned that 20 years ago, upping the pressure gave a bit more horsepower. But that the injectors he sells today (I got the Bosch III's) worked best at stock pressure.

I used gasoline to clean out the motor when I had to get new head gaskets. Seemed to work quite well.

Here are my old head gaskets.

 

you done very well young grass hopper.

Mike

 

Not so much RTV on the china walls next time. 1/4" singe bead is all you want or need. The rest will just moosh out the front and back and into the lifter valley area.

 

That's what I thought originally about too much or a single bead of RTV to prevent any strange oil leaks but after carefully viewing the outer mating surfaces it looks like a fairly good seal and any oil leaks should be a done deal there I hope so we will see. It's cured by now and felt very solid to the touch.

I have another question now, I found my distributor gasket on my workbench and totally forgot to install it when the distributor finally popped into the correct orientation. Is it of major importance or minor issue due to gasket thickness??? I wonder if it sits in the distributor hole or above the intake manifold seat and I didn't find one when I pulled the dizzy out before. This after a well deserved beer...

 

I think you have done a great job so far. The missing distributor gasket may cause a slight oil leak.

 

that it will indeed would get that gasket and replace it so as not have to mess with the engine again. . .

Mike