Thanks for the answer. I guess next step is checking valve clearances. If they're ok, remove the head and check for valve leakage, check cylinder walls.
Compression is 200, 230, 230, 250PSI. I know this is lower than ideal (350PSI?), but shouldn't it still run at this compression? This engine died several years ago. Owner never had time to find out why, but suspects a fuel issue. Now I'm trying to get it running. Even with a constant spray of...