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Forum: Pontiac - Street 06-05-2026, 10:13 AM
Replies: 4
Views: 363
Posted By 400 Lemans
https://www.shifterdoc.com/4070009_Install.pdf...

https://www.shifterdoc.com/4070009_Install.pdf Looks like it goes down.
Forum: Pontiac - Street 05-12-2026, 09:11 AM
Replies: 9
Views: 191
Posted By 400 Lemans
Don't forget the 3 torque converter bolts.

Don't forget the 3 torque converter bolts.
Forum: Pontiac - Street 03-27-2026, 03:30 PM
Replies: 9
Views: 438
Posted By 400 Lemans
This one might work for...

This one might work for you.https://torqueking.com/products/30040-qu30040-vent-fitting-for-5-16-hose?srsltid=AfmBOor7Ww_hBqdhcID3V35SWaFsGy992i2Fqg_0LJ4NJ2eqcB1EtT2q
Forum: Pontiac - Street 12-01-2025, 02:44 PM
Replies: 16
Views: 592
Posted By 400 Lemans
Just zip tie around the center of the plates a...

Just zip tie around the center of the plates a few times and not the individual springs. Makes it easier to get the ties back out after you cut them.
Forum: Pontiac - Street 12-01-2025, 01:57 PM
Replies: 16
Views: 592
Posted By 400 Lemans
Compress the two halves with the springs...

Compress the two halves with the springs installed in a vise and then zip tie them together. Slide it in the carrior and then cut the ties. Its a little tricky but its about the easiest way. It takes...
Forum: Pontiac - Street 08-30-2025, 02:16 PM
Replies: 239
Views: 17,642
Posted By 400 Lemans
https://cloyes.com/wp-content/uploads/2019/06/9-ke...

https://cloyes.com/wp-content/uploads/2019/06/9-keyway-instructions.pdf Remember when you use the 8 advance key for example then you will line up the cam gear dot with the 8a mark on the crank...
Forum: Pontiac - Street 08-22-2025, 02:39 PM
Replies: 239
Views: 17,642
Posted By 400 Lemans
Look at Cliffs post #6 on this thread. He had...

Look at Cliffs post #6 on this thread. He had installed plenty of Crower cams. Save yourself anymore hassle and advance it....
Forum: Pontiac - Street 08-22-2025, 02:39 PM
Replies: 239
Views: 17,642
Posted By 400 Lemans
Look at Cliffs post #6 on this thread. He had...

Look at Cliffs post #6 on this thread. He had installed plenty of Crower cams. Save yourself anymore hassle and advance it.
Forum: 70-72 GTO Tempest & LeMans TECH 08-19-2025, 05:44 PM
Replies: 493
Views: 114,011
Posted By 400 Lemans
Yeah the pinon yoke gets C -clips on it also so...

Yeah the pinon yoke gets C -clips on it also so it centers it. If there not there then the ujoint will move on you eventually.
Forum: 70-72 GTO Tempest & LeMans TECH 08-19-2025, 04:23 PM
Replies: 493
Views: 114,011
Posted By 400 Lemans
The 3r u-joint centers itself with no movement...

The 3r u-joint centers itself with no movement side to side. Are you sure the inside clips are installed?
Forum: Pontiac - Street 06-17-2025, 07:17 AM
Replies: 23
Views: 1,506
Posted By 400 Lemans
You need to tighten the leaf spring u-bolts. You...

You need to tighten the leaf spring u-bolts. You can see the leafs shifting a bit.
Forum: Pontiac - Street 06-01-2025, 08:37 AM
Replies: 60
Views: 4,279
Posted By 400 Lemans
Sometimes the spring under the fuel pump arm can...

Sometimes the spring under the fuel pump arm can break causing slop and makes that sound. Something easy enough to check.
Forum: Pontiac - Street 05-13-2025, 07:58 AM
Replies: 239
Views: 17,642
Posted By 400 Lemans
Cliff always said that the Crower cams always...

Cliff always said that the Crower cams always need 4 to 6 degrees advance to get to correct 108 or 109 centerline. If its retarded it will be...
Forum: 70-72 GTO Tempest & LeMans TECH 05-03-2025, 09:16 AM
Replies: 3
Views: 859
Posted By 400 Lemans
https://forums.maxperformanceinc.com/forums/showth...

https://forums.maxperformanceinc.com/forums/showthread.php?p=3274464 I think the speedo should be on the drivers side.
Forum: Pontiac - Street 03-31-2025, 11:51 AM
Replies: 8
Views: 1,649
Posted By 400 Lemans
http://forums.maxperformanceinc.com/forums/showthr...

http://forums.maxperformanceinc.com/forums/showthread.php?p=6468974 Good pic of it here in #5 post.
Forum: Pontiac - Street 03-20-2025, 07:57 AM
Replies: 27
Views: 1,902
Posted By 400 Lemans
1968, 15 heads are 75cc. 1970, 15 heads from a...

1968, 15 heads are 75cc. 1970, 15 heads from a 455 are 87cc. So yeah you have about 10 to 1 compression. Change the cam for sure.
Forum: Pontiac - Street 01-23-2025, 11:32 AM
Replies: 149
Views: 77,241
Posted By 400 Lemans
Using the same carbs from the 70s and 80s. They...

Using the same carbs from the 70s and 80s. They didn't do this back then, but they do now. Its the junk gas.
Forum: Pontiac - Street 01-21-2025, 05:24 PM
Replies: 31
Views: 6,917
Posted By 400 Lemans
If your currently running your vacuum advance on...

If your currently running your vacuum advance on full manifold vacuum then switch it over to ported.
Forum: Pontiac - Street 01-17-2025, 09:00 AM
Replies: 128
Views: 12,035
Posted By 400 Lemans
https://www.ebay.com/itm/276711674203?itmmeta=01JH...

https://www.ebay.com/itm/276711674203?itmmeta=01JHT5DFNMYVPXA69MFZ1QV15K&hash=item406d4d115b:g:x6QAAOSwll1WxeKc Good stock length from Spotts.
Forum: Pontiac - Street 01-09-2025, 11:14 AM
Replies: 20
Views: 2,578
Posted By 400 Lemans
They are unsafe if you drop off a steep shoulder...

They are unsafe if you drop off a steep shoulder on the road. They will contact the road and could cause a wreck. That being said, they sure had a good old school look, back in the day.
Forum: 70-72 GTO Tempest & LeMans TECH 01-06-2025, 11:37 AM
Replies: 4
Views: 2,900
Posted By 400 Lemans
Good thread here. look at post...

Good thread here. look at post 15.https://forums.maxperformanceinc.com/forums/showthread.php?t=531775
Forum: Pontiac - Street 01-01-2025, 09:34 AM
Replies: 25
Views: 3,253
Posted By 400 Lemans
Use the rear 3/8 fitting on your holley for the...

Use the rear 3/8 fitting on your holley for the pvc. Just loop the hose down under the intake and to the pvc valve that has a 90 deg fitting on top. Run your booster from the intake port on back of...
Forum: Pontiac - Street 12-02-2024, 10:03 AM
Replies: 18
Views: 2,319
Posted By 400 Lemans
If the 4x heads are original 455 heads then you...

If the 4x heads are original 455 heads then you cant get 9.5 comp with a .045 cut using flat top pistons. Those heads are like 114cc to start with.
Forum: Pontiac - Street 11-28-2024, 08:48 AM
Replies: 175
Views: 65,992
Posted By 400 Lemans
https://www.speedmaster79.com/engines-components/c...

https://www.speedmaster79.com/engines-components/cylinder-heads/cylinder-heads?enginemake=Pontiac Back on sale.
Forum: Pontiac - Street 11-05-2024, 04:46 PM
Replies: 16
Views: 1,288
Posted By 400 Lemans
A little hard to see but hit the zoom in...

A little hard to see but hit the zoom in button.https://www.chicagomusclecarparts.com/pages/1975firebird
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