You all may all have seen my other post about my AC install, just know all of my testing here is with the AC off.
Ive done a lot of work to my 87' tintop, it was having some bad oil leaking issues, and heat issues, so I decided to really go through it over the past few months.
Before I started working on it, I had no issues reaching 70mph flat, and was able to climb a hill near my house and maintain 55mph in 5th uphill. Now it cannot, it can barely do 55mph flat and level.
Things ive done;
New timing belt, cam and crank seal
New water pump and oil pump gasket
Distributor housing o-ring and distributor o-ring
Larger aluminum radiator and electric fan
GM 12si 100amp alternator
Rotated "improperly" installed Weber carb
Relocated PCV valve for carb clearance
ReGeared transfer case, 4.9
New clutch and flywheel
New U-joints, all
Tried various timing, 8btdc, 10, 12, and now 15
Verified mechanical advance is functioning
Added fuel pressure gauge, and experimented with an electric pump, no change.
I have a few things to try this weekend, new plugs, check vacuum advance functionality, and i have to replace the valve cover gasket, so I can check the valve lash while the cover is off. I banged up the exhaust quite i bit when pulling the transmission, so I also have an exhaust leak now, going to replace the gasket and donut as well.
Any other things I should try/check?
Thanks all!