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Mines a redbull can......tech wasn't crazy about it though.
I figure it's gotta be worth a 10th or so.....
Some more detail on the build would help. Assuming you are at 9:1 or so or less, which is likely with large chamber heads you (in my opinion)...
Smoke at startup is likely valve seals. I would check the oil pickup screen for seal debris. You'd be surprised how they end up wedged between the...
I thought the Pontiac th350 had a different bell housing pattern than the chev. Not sure if the overall length was the same...probably.
40 is a huge squirted size for a mild motor.
I thought you even had to run a hollow screw when you went that big.
I would back it off the...
Line hone, square the decks
If I had to re-do my build, I would start with a dart shp block, and call it a day.
By the time my machining was complete, on my 30 year old...
Amsoil Z rod. 10/30.
Expensive.....but not near as much as my parts.
That's kinda where I was going as well.
Dot to dot on the gears and stab the dizzy will put you 180 out.
If timings perfect, are all the rockers moving?
So, where's your timing at?
Are you sure you aren't 180 out?
Well.....hell....I'm sure someone way smarter than me will jump in, but if you've got .080+ on the exhaust and .040 on the intake....I'd run it to...
What's your exhaust clearance?
...I will tread very carefully here, but in MY opinion, that's not a stupid number on the intake side. Very tight,...
Are you using test springs or your actual springs?
If it's been sitting for a year, it's probably a good idea to re-set the lash.
Likely not critical....but sooner than later to be safe.
You can use poly mounts.
Exhaust gasket leak/pin hole in headers can cause this..
But I'm probly reaching here.
Will your old school heads handle that kind of lift before crashing the retainers?
No replacement for displacement.
Wouldn't it depend what the jet size was?