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Search took 0.01 seconds. Search: Posts Made By: 1950Mercury
Forum: 66-67 GTO Tempest & LeMans TECH 03-02-2026, 12:51 AM
Replies: 14
Views: 814
Posted By 1950Mercury
I had a 66 GTO when I was in my 20's with...

I had a 66 GTO when I was in my 20's with headers. I just didn't remember it being that of a PITA.. Now in my mid 70's it isn"t fun.
Forum: SOLD Parts 12-24-2025, 03:30 PM
Replies: 4
Views: 657
Posted By 1950Mercury
Rochester Quadrajet 4 barrel

QuadraJet 4 barrel that came off a 1970 Pontiac Firebird numbers say for a 1970 Pontiac. 750 cfm. Part number 7040263. Selling as a rebuildable core. $75.00 plus actual shipping from Idaho
Forum: Pontiac - Street 12-17-2025, 04:12 PM
Replies: 18
Views: 1,257
Posted By 1950Mercury
If I was considering a 4.250 stroke why not just...

If I was considering a 4.250 stroke why not just start with a 455? The car already has a 389 turned into a 400 and cammed 670 heads. 3x2's. Car runs okay for what it is. But down the line I would...
Forum: Pontiac - Street 12-31-2024, 06:05 PM
Replies: 15
Views: 1,862
Posted By 1950Mercury
I do understand that. I generally use Ross...

I do understand that. I generally use Ross pistons and tell them the compression height I want. I was just wondering about the crank. All I was seeing was the longer stroke which I don't particularly...
Forum: 66-67 GTO Tempest & LeMans TECH 07-27-2024, 02:03 PM
Replies: 6
Views: 1,294
Posted By 1950Mercury
I kind of agree with you. I am old school at 73. ...

I kind of agree with you. I am old school at 73. Thing is I would end up repainting the whole car. Being it is a 2 stage paint job. Then there is the cost of material. I use PPG and the last time I...
Forum: 66-67 GTO Tempest & LeMans TECH 04-15-2024, 01:17 PM
Replies: 13
Views: 2,430
Posted By 1950Mercury
Oh well. I installed riv nuts yesterday. That's...

Oh well. I installed riv nuts yesterday. That's what you do when some idiot don't weld a nut on backside.
Forum: 66-67 GTO Tempest & LeMans TECH 03-16-2024, 12:07 AM
Replies: 2
Views: 1,207
Posted By 1950Mercury
Issue solved.

Issue solved.
Forum: 66-67 GTO Tempest & LeMans TECH 02-18-2024, 08:54 PM
Replies: 5
Views: 1,159
Posted By 1950Mercury
1966 GTO wire help needed

Needing a little more guidance on this M&H under dash harness for 66 GTO w/ralley gauges 4 speed non air car. There is a brown 2 wires to a red plug about center of dash. On left side there is a...
Forum: 66-67 GTO Tempest & LeMans TECH 01-29-2024, 01:29 AM
Replies: 5
Views: 2,247
Posted By 1950Mercury
1966 Pontiac GTO under dash wiring

Trying to decipher what I have. Working on 66 GTO 4 speed console car none A/C rally gauges. The under dash wiring is M&H.. Looking at there website it seems they do not offer a harness for a 4...
Forum: Pontiac - Street 01-08-2024, 11:30 AM
Replies: 10
Views: 1,689
Posted By 1950Mercury
I never worry how long an engine sets after...

I never worry how long an engine sets after assembly. But before I fire an engine for the first time I always use a dummy distributor (remove the gear) to pump oil through the engine. I also bar the...
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