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JBswth's latest activity
J
JBswth
reacted to
75gmck25's post
in the thread
Are these modern carburetors a big improvement?
with
Like
.
Cylinder wear issues have been significantly reduced because most modern EFI systems keep AFR within very close limits. Modern...
Apr 27, 2026
J
JBswth
reacted to
PhotonFanatic's post
in the thread
Are these modern carburetors a big improvement?
with
Like
.
Are modern carbs from Holley, Edelbrock, Demon, etc a big improvement over stock stuff from the 70's and 80's? One assumes there would...
Apr 27, 2026
J
JBswth
reacted to
AuroraGirl's post
in the thread
Big block running hot. Can’t figure out the issue
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Like
.
Apr 27, 2026
J
JBswth
reacted to
75BEASTK20's post
in the thread
Big block running hot. Can’t figure out the issue
with
Like
.
I'd start with checking rad first for circulation or any kind of blockage. Then check thermostat to make sure it opens. Even NEW...
Apr 27, 2026
J
JBswth
replied to the thread
Big block running hot. Can’t figure out the issue
.
Are you sure that your vacuum advance is supposed to be using manifold vacuum and not ported vacuum? J. B.
Apr 27, 2026
J
JBswth
reacted to
Slooptin's post
in the thread
Big block running hot. Can’t figure out the issue
with
Like
.
Cruise is around 14-15. Idle is 11-12. It gets hot whether I drive it around or not. Not sure on total timing. Vac advance is hooked up...
Apr 27, 2026
J
JBswth
reacted to
77Dmax's post
in the thread
Big block running hot. Can’t figure out the issue
with
Like
.
What are your cruise AFR and total timing specs?
Apr 27, 2026
J
JBswth
reacted to
nvrenuf's post
in the thread
Big block running hot. Can’t figure out the issue
with
Like
.
What about the radiator, are you sure it’s not blocked internally?
Apr 27, 2026
J
JBswth
reacted to
Slooptin's post
in the thread
Big block running hot. Can’t figure out the issue
with
Like
.
Also forgot to mention I checked the head temp with a heat gun and the outside surface is around 245 so I relieve my gauge is accurate
Apr 27, 2026
J
JBswth
reacted to
Slooptin's post
in the thread
Big block running hot. Can’t figure out the issue
with
Like
.
I believe so. When I burped the system initially it looked like there was fluid flowing once the t stat opened up. I haven’t paid...
Apr 27, 2026
J
JBswth
replied to the thread
hot and rough, running that is
.
Just a hunch, but what kind of EGR valve do you have? The conventional vacuum operated kind or the exhaust back pressure modulated...
Apr 27, 2026
J
JBswth
reacted to
GTManley's post
in the thread
hot and rough, running that is
with
Like
.
Hey folks GT here with a delima that has me going crazy. Truck (1988 1500 4wd suburban, stock tbi 350) runs hot after driving and now...
Apr 27, 2026
J
JBswth
replied to the thread
Anyone running this engine?
.
Who is BP?
Apr 27, 2026
J
JBswth
reacted to
Shoote's post
in the thread
Anyone running this engine?
with
Like
.
I have a BP 454 in my V10. First engine used a quart of oil every 100 miles and had a lot of top end noise. BP paid a local shop for...
Apr 27, 2026
J
JBswth
reacted to
TomR10's post
in the thread
Anyone running this engine?
with
Like
.
I have the BP3503 in my truck. Long block, cast head, 2 bolt main, much cheaper version that I don't think they offer anymore. Runs...
Apr 27, 2026
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