Yes the engine is a 1972, 350. But the car is a 1981 Olds 98 Regency. Was told, it was rebuilt and used at the circle track for a couple races. I bought the whole engine used for $1,000 in Florida.Yes, those are very cold plugs. You have a stock mid 70's 350, correct?
Awesome. Thanks for help and info!An Olds 350 is a totally different design, very similar other than bore size to the Oldsmobile designed short deck or small block V8's, 260 through 403. The 400, 425 and 455 tall deck or big block Oldsmobile V8's are very similar but have 3" mains, 1.3" taller deck requiring a wider intake manifold. The cap and rotor are the only thing that will interchange. But your 72 motor had a different points cap and rotor factory. Just order a cap and rotor for a 307. You can use a 307 oil filter but it is small. I usually use the Wix 51258 or Napa Gold 1258 or Hastings LF222 oil filters. Good chance either the big dish factory pistons were used with new rings or the short on height big dish replacement pistons were used. If that is the case, you have 8 to 1 compression or less. I would add at least 5, maybe 8 degrees more timing. Yes, the 0 is at the bottom, the 20 is at the top. Many things are different on the Olds V8 vs a chevy V8. You can actually fit more Ford parts on your Olds V8 than chevy parts.
I took all of them out regapped theI took a plug out, it was clean. AC Delco R45S it was gapped tighter than .040 but more than .035
Ok. I have one of those plastic see thru fuel filters between the tank and the fuel pump. So, before the fuel pump, but right next to it. The gas tank is new (couple years old).Your fuel pressure sounds about right. Do you have a fuel filter before the carb? I would try another 2 to 4 degrees of timing.
It had a computer controlled quadrajet originally with all the smog crap that didnt work right on the 307.It could be, try turning down the regulator a bit. A custom tuned Qjet would be my choice on this motor. Does it have an adapter for the Holley on the stock intake?
At minimum you want a piston like the new Mahle 10cc forged pistons Cutlassefi brought to the market. He also has complete 4" billet stroker crank assemblies for around 420 ci. I am sure he could build your short block.Been having progressive louder engine noise, today I heard metal on metal. Like sounds of something flinging off into the oil pan. So I dropped it off at a buddies diesel truck shop for a lower rebuild.
Thoughts on parts to upgrade from stock with this rebuild? Bigger cam? Or shipping it somewhere to have it ported/stroked? Or just get a crate engine?